Which one of the following is a weak acid?
a. H2SO4
b. HI
c. HBr
d. HF
e. HClO4

Answers

Answer 1

Answer:

HF

Explanation:


Related Questions

Predict how oxygen crosses the plasma membrane if the concentration of oxygen is lower inside the cell than it is outside the cell.

Answers

The oxygen crosses the plasma membrane if the concentration of oxygen is lower inside the cell than it is outside the cell is by the simple diffusion.

The diffusion can be defined as the process in which the movement of particles takes place from the lower concentration to the higher concentration through a semipermeable membrane. T he oxygen crosses the plasma membrane if the the concentration of oxygen is lower inside the it the outside the cell called as diffusion.

Thus, The oxygen crosses the plasma membrane if the concentration of oxygen is lower inside the cell than it is outside the cell is by the simple diffusion.

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If you are driving, and a fly or a bug that can fly comes in your car, and you are driving 80+ miles. Is that bug flying at 80+ miles? Explain.

Answers

Answer:

The car is carrying a volume of air that is moving at 80 mph relative to the ground. But inside the car itself, the air not moving very much. If you take the windshield out and drive a 80 mph you will smash the fly onto the back window.

Explanation:

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question 14 (1 point) iron will react with water to produce an iron oxide and hydrogen gas. which equation below represents a correctly balanced equation for this reaction? a. Fe + 4H2O > Fe3O4 + 4H2 b. 3Fe + 4H2O > Fe3O4 + H2 c. 3Fe + 4H2O > Fe3O4 + 4H2 d. 3Fe + 4H2O > Fe3O4 + H2

Answers

The correct option for chemically balanced equation is - d. 3Fe + 4[tex] H_{2}[/tex]O > [tex] Fe_{3}[/tex][tex] O_{4}[/tex] + [tex] H_{2}[/tex].

The mentioned chemically balanced reaction states reaction between iron and water to produce iron oxide and hydrogen. Fe represents iron, [tex] H_{2}[/tex]O represents water, [tex] Fe_{3}[/tex][tex] O_{4}[/tex] represents iron (II, III) oxide and [tex] H_{2}[/tex] represents hydrogen.

Iron oxides are commonly found in human body and environment. It is present in body as haemoglobin and in nature as ores. The applications are as catalyst, paints, concretes, thermites etc. Iron oxides possess multiple properties including large surface area, magnetic properties and low toxicity. The low toxicity makes it a suitable candidate for therapeutic purposes in human body by participating in drug delivery, magnetic coatings, biosensors, and other purposes like wastewater purification, magnetic data storage etc.

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How many molecules in 35 g of CO2

Answers

Answer:

35/44* 6.022*10^24

Please mark as brainliest

Explanation:

A 0. 20 mol sample of mgcl2(s) and a 0. 10 mol sample of kcl(s) are dissolved in water and diluted to 500 ml. What is the concentration of cl- in the solution?.

Answers

A 0. 20 mol sample of MgCl₂(s) and a 0. 10 mol sample of KCl(s) are dissolved in water and diluted to 500 ml. the concentration of Cl⁻ in the solution is 1M.

the equations is given as :

MgCl₂  ---->  Mg²⁺   +  2Cl⁻

KCl  ----.  K⁻   +   Cl⁻

moles of chloride ion in MgCl₂  = 2 × 0.20 mol

                                                   = 0.40 mol

moles of chloride ions in KCl = 0.10 mol

total moles = 0.40 + 0.10 = 0.50 mol

volume = 500 mL = 0.5 L

concentration Cl⁻ , molarity = 0.50 / 0.5

                                              =1 M

Thus, A 0. 20 mol sample of MgCl₂(s) and a 0. 10 mol sample of KCl(s) are dissolved in water and diluted to 500 ml. the concentration of Cl⁻ in the solution is 1M.

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Ammonia can form ________, which can then be converted into ____________. Both can be taken in by _________________.

Answers

Ammonia can form nitrite, which can then be converted into nitrate. Both can be taken in by plants. This process is known as nitrification.

What is the nitrogen cycle?

The nitrogen cycle refers to the processes by which nitrogen is cycled between the living and non-living components of the environment.

The nitrogen cycle consists of processes that add as well as remove nitrogen from the soil and the atmosphere.

Plants require nitrogen for growth. This nitrogen is sourced mainly from the atmosphere. Nitrogen is the most abundant gas in the atmosphere, however, it exists in a form that is not readily available to plants.

Hence several processes such as nitrogen fixation, nitrification, and ammonia conversion are required for plants to obtain nitrogen.

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palmitic acid only contains two oxygens per sixteen carbons, whereas glucose has six oxygen atoms per six carbons. explain the significance of this when each molecule is fully oxidized

Answers

The significane is that it generates more ATP per carbon (128/16) than glucose (38/6).

What is Palmitic acid?

Palmitic acid increases LDL cholesterol levels more than other saturated fats, such as stearic acid. According to them, there is compelling evidence that high consumption of palmitic acid increases the risk of cardiovascular disease. Palmitic acid has only two oxygen atoms for every sixteen carbons, whereas glucose has six oxygen atoms for every six carbons. As a result, when fully oxidized, palmitic acid generates more ATP per carbon (128/16) than glucose (38/6). As a result, we use fat as our primary energy storage material.

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Under conditions of excess oxygen, rubisco will use o2 instead of co2 and less carbon is fixed. This process is called.

Answers

Under conditions of excess oxygen, rubisco will use o2 instead of co2 and less carbon is fixed. This process is called Photorespiration.

What is Photorespiration?

Photorespiration is the process by which molecular oxygen (O2) is taken up by light and carbon dioxide (CO2) is released from organic compounds. The gas exchange is similar to respiration and works in the opposite direction of photosynthesis, where CO2 is fixed and O2 is released.

Carbon fixation produces two molecules, 3-phosphoglycerate (PGA), which enter the Calvin cycle and eventually form sugars.

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If the price elasticity of demand for Clean Sheets laundry detergent is 1.50, a 5 percent decrease in the price will lead to which of the following? A. a 7.5 increase in quantity B. a 7.5 decrease in quantity C. a 1.50 decrease in quantity D. a 1.50 increase in quantity

Answers

The price will lead to a 7.5 increase in quantity. Option A.

Expanded expenses typically result in a lower call-for and call-for increases commonly result in expanded supply. however, the delivery of different merchandise responds to demand otherwise, with some products' demand being much less touchy to costs than others. A fall in charge leads to an extension of call but makes it less worthwhile for a commercial enterprise to supply the best or carrier affected.

Calculation:-

Demand for laundry detergent is = 1.50

Decrease in price percent = 5%

5 % of 1.50 is = 1.50×5/100

= 0.075 or 7.5.

Economists call this the regulation of demand. If the charge goes up, the amount demanded goes down. If the charge decreases, the quantity demanded will increase. that is the regulation of demand. If greater people want to buy inventory than promote it then the price moves up. Conversely, if greater human beings desired to sell a stock than purchase it there could be a greater supply than called for and the charge would fall. knowledge supply and call for is straightforward.

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What does the Virtual California model show most clearly? Earth science

Answers

"Virtual California" is a topologically realistic model used to simulate earthquakes in the San Andreas fault system.

The model includes elastic interactions between faults in the model, driving at the correct plate tectonic rate, and friction physics at faults using physics derived from laboratory models with parameters consistent with past seismic events. includes science. An important consequence of elastic interactions in models is the correlation of event occurrences and the emergence of spatiotemporal patterns. Without interaction, each error element works independently. Cooperative phenomena and patterns can be seen in interactions.

Previous numerical analyzes of this simulation focused on the distribution of repetition times between large events. From this, we can calculate the latency to the next major earthquake and create a hazard forecast for the California Fault. We propose and develop a new method for generating and evaluating synthetic earthquake catalogs using Virtual California. The goal of scoring is to use the paleoseismic data to identify intervals within the man-made data that best resemble current California seismic conditions. Primarily using the highest scoring states to calculate wait times and create earthquake forecasts. An alternative method involves using all states weighted to reflect how similar the recent past is to the observed data. In this way, we integrate paleoseismic data into the simulation. In this talk, I will explain how to do it, give some examples of scoring methods, the results of calculating conditional probabilities that future events will occur, and what these probabilities were calculated using all the data. report how it differs compared to all data.

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beers law lab if your unknown copper sulfate solution was produced by diluting 20 ml of a more concentrated copper sulfate solution to a final volume of 100 ml, what was the original concentration of the concentrated solution?

Answers

100.0 mL of a solution containing copper was mixed in it. At 620 nm, this solution's absorbance was 0.477.

What does the focused meaning mean?

Contained, present, or taking place in a constrained region or area: not dispersed. a light beam that is extremely focused. 3. fervent, fervent a task requiring numerous hours of focused work.

What does liquid concentrated mean?

A liquid that has had its water removed has been strengthened by concentration. Use concentrated apple or apricot juice, honey, or both moderately to sweeten food. Condensed, rich, undiluted, and reduced are synonyms for Additional words for concentration.

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using any data you can find in the aleks data resource, calculate the equilibrium constant at for the following reaction. 2nocl round your answer to significant digits.

Answers

The equilibrium constant  for the following reaction. round the answer to significant digits 3.41 × 10⁻⁸.

The reaction is given as :

2NOCl   ----->   2NO   +   Cl₂

The Gibbs energy is given as:

ΔG = ΔG° + RT ln K

at equilibrium ΔG = 0

ΔG° = ∑ ΔG° products - ∑ ΔG° reactants

ΔG° NOCl = 66.3 kJ/mol

ΔG° NO = 87.6 kJ/mol

ΔG°  Cl₂ = 0 kJ /mol

ΔG° = ∑ ΔG° products - ∑ ΔG° reactants

       =  (2 × 87.6 + 0) - (2 × 66.3 )

       = 42.6 kJ /mol

equilibrium constant K = exp (- ΔG° / RT )

                                      =  exp ( - 42.6 / ( 8.314 × 10⁻³ × 298)

                                      = 3.41 × 10⁻⁸

Thus, using any data that can find in the aleks data resource, the equilibrium constant for the following reaction. 2NOCl. The equilibrium constant at for the following reaction. round the answer to significant digits 3.41 × 10⁻⁸.

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50 points!!!
What happens to the atom when the number of each subatomic particle changes?

Answers

Answer:

If the number of protons, neutrons, or electrons changes, it changes the properties of the atom in a major way.

#1 Changing the Proton Number

If you change the number of protons, you completely change the element.



Each element has a certain number of protons. If sodium gained a proton it would become magnesium.

Obviously, it’s a little more complicated than that, but you get the picture. Tell students to leave protons alone.



(By the way, if you are looking for a color coded way to teach finding protons from the atomic number, read this blog post.)

#2 Changing Neutron Number

If you change the number of neutrons, you create isotopes. Isotopes are basically just lighter or heavier versions of an average element.



In fact, the way we calculate the mass number of a given element on the periodic table is to average the light, medium, and heavy versions of that element.

#3 Changing Electron Number

If you change the number of electrons you create ions. A loss of electrons is going to lead to an anion. A gain of electrons is going to lead to a cation.



If you are teaching this principle to your students, make sure they know that most elements tend to form either a cation OR an anion. Not both.

Well, unless you are hydrogen, but he’s “special”.

Subatomic Particles Matter

After explaining all this to your students they will see that the smallest change, or mistake as it is likely to be, will change the whole atom.

It also really helps students to see these principles side by side because many times on tests we ask them what the loss of an electron will do to an atom of Na.

One of the options is usually “Create an isotope”, so this helps clarify the concept so that your students are better prepared for those concepts.

Hope, these help you give a clear and better understanding !

The scientific study of the behavior of substances near 0 k is called pyrogenics. True false.

Answers

False. Because the scientific study of behavior of the substances near 0k is called cryogenics.

The behavior of the substance at very low temperature is called cryogenics. This is the branch of engineering that involves the study of very low temperatures that are below 123k.Rapid moving molecules in a substance  have a higher temperature than slower moving molecules. Ultra cold temperature changes the chemical properties of materials. It is used to produce cryogenic field  for rockets MRI machines, storing large quantity of food. It is also used in freezing blood sample and tissues. This is also use preservation of organs.

Pyrogenic is the formation of the particle by means of flame oxidation of metals in gas phase. This is the study of temperature between 1000c to 2400c.this is produced by producing heat.it generally produced in human body caused by fever.

So, the behavior of a substance at 0k is called cryogenics not pyrogenic.

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Please Help! Please answer ASAP!
15. Scientists may design an experiment with a control group, which is a set of organisms or samples that do NOT receive the treatment (the independent variable) that is being tested. Scientists
can then compare normal changes in organisms or samples with those that might have occurred
because of the treatment. The idea of a "control group" is not the same as a "controlled variable."
Suppose a scientist is doing an experiment to determine the effect of a cancer drug on mice with
lymphoma.
a. What are some of the variables the scientist should control in the experiment?
b. Describe the control group for this experiment.

This is what I have so far, but I could be wrong.

Answers

a) A control variable would be the same species of the rat that were used in the entire experiment.

b) A control group is the group of rat that do not have lymphoma.

What is control variable?

The control variable is a group which is unchanged or constant throughout the experiment. They may include temperature, humidity, pressure, experimental techniques, sample volume etc.

In an experiment control variable is the variable which must be kept constant throughout the experiment to keep the outcome of the experiment unaltered. The control group is the one that don't receive the treatment while being tested in an experiment.

Therefore, a control variable would be the same species of the rat used in the entire experiment and control variables are the one which do not have a lymphoma.

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Why can you not selectively epoxidize an alkene with mcpba in the presence of a ketone?.

Answers

MCPBA is useful reagent for epoxide formation and ketone to ester formation and it epoxidized alkene to epoxide and also oxidize ketone to ester and so we can't selectively epoxidize an alkene if both alkene and ketone are present

Purified mCPBA is a useful reagent for the oxidation of various classes of aldehyde α branches aliphatic aldehydes undergo beayer villiger oxidation to form formates and α bramced α-β unsaturated aldehydes yield enol formates and or epoxides and α hydoxylated aldehydes yield ketone and most aldehydes and ketone have a low celling temprature below ambient temprature that is these compound do not polymerize above room temprature and mCPBA is strong oxidant comparable to other peracid and the advantage of 3 chloroperbenzoic acid is it handling

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How does the brain respond to an increase in body temperature?
a) Constricting the blood vessels and reducing blood supply the skin.
b) Dilating the blood vessels and increasing blood supply the skin.
c) Decreasing the amount of ADH so more water is lost in the urine.
d) Increasing the amount of ADH so less water is lost in the urine.

Answers

Answer: B - Dilating the blood vessels and increasing blood supply the skin.

Explanation:

If body temperature rises, blood vessels in the skin dilate, allowing more blood to flow near the skin’s surface. This allows heat to dissipate through the skin and into the surrounding air.

select all the strong bases from the following list. multiple select question. ca(oh)2 h2so4 nh3 naoh koh

Answers

Strong bases are Ca(OH)₂, KOH, NaOH

A strong base is a substances that behave like a base and dissociates completely to give a solution that is composed of its ion and conjugate acid and hydroxyl ion bases are substances that accept hydrogen ion H⁺ from other atom and a strong base is a base that is completely dissociated in an aqueous solution and these compound ionize in water to yield one or more hydroxide ion per molecule of base

So in that given data Ca(OH)₂, KOH, NaOH this is the strong bases because in the OH⁻ hydroxide ion yield one or more hydroxide ion per molecule of base

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which naturally occurring atmospheric gas is particularly of concern to scientists studying human-generated greenhouse gases?

Answers

Methane, nitrous oxide, carbon dioxide, and other manmade compounds are among the main greenhouse gases. Since it now contributes the most to the warming caused by human activity, carbon dioxide is sometimes cited as the most significant anthropogenic greenhouse gas.

About half of all carbon dioxide emissions from human activity between 1750 and 2010—the most common and longest-lasting greenhouse gas—were produced in just the previous 40 years, primarily as a result of the burning of fossil fuels and industrial operations.

What is Atmospheric gas ?

Gases found in the atmosphere of the Earth are known as atmospheric gases. Although greenhouse gases (carbon dioxide, methane, nitrous oxide, water vapor, and ozone) make up 1% of the air, oxygen and nitrogen make up 99% of these gases.

About 78% of the gases in the Earth's atmosphere are nitrogen, 21% are oxygen, 0.9 % are argon, and 0.1 % are other gases. The remaining 0.1 percent of gases includes trace amounts of neon, water vapor, methane, carbon dioxide, and methane.

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The bond dissociation energy, in kj, to break 1 bond in 1 mole of co₂ molecules is?.

Answers

The bond dissociation energy, in KJ, to break 1 bond in 1 mole of co₂ molecules is 1644 kJ.

The bond-dissociation strength is one measure of the power of a chemical bond A−B. it is able to be described as the standard enthalpy alternate whilst A−B is cleaved by way of homolysis to present fragments A and B, which are generally radical species.

Calculation:-

The bond dissociation energy of CO₂ is 1644 kJ.

It is an experimental value.

The bond between silicon and fluorine is stated to have the strongest bond dissociation enthalpy. Covalent bonds among atoms or molecules are stated to have susceptible bond dissociation energies.

The bond dissociation energy is the strength required in an endothermic process—to break a bond and shape two atomic or molecular fragments, each with one electron of the authentic shared pair. for this reason, a very solid bond has a large bond dissociation strength extra power needs to be delivered to cleave the bond.

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What are the first two quantum numbers for the electrons located in subshell 4d

Answers

The first two quantum numbers for the electrons located in subshell 4d is n=4,l=2

For n = 4, l = 2

Here, n represents the principal quantum number

The d in 4d represents d orbital as determined by the secondary quantum number (l).

The quantum number l tells us the shape of the orbital.

l = 0     s orbital

l = 1      p orbital

l = 2     d orbital

The four quantum numbers specify the orientation of an electron, shape size, magnetic aspect, and energy.Four quantum numbers that specify an electron are n,l,m,sIt also specifies the filling of electrons in an orbital.The filling is governed by Aufbau principle.

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draw the correct electron-dot structure h2s , hydrogen sulfide, a poisonous gas produced by rotten eggs. draw the molecule by placing atoms on the grid and connecting them with bonds. include all lone pairs of electrons.

Answers

Hydrogen sulfide, H₂S is a colorless gas with a strong odor of rotten eggs.

Hydrogen sulfide may additionally motive infection to the eyes and respiration system. It could also motive apnea, coma, convulsions; dizziness, headache, weak spot, irritability, insomnia; belly disappointed, and if liquid frostbite.

H‐S -H

Hydrogen sulfide is a drab gasoline recognized for its stinky rotten egg odor at low concentrations. It's miles extremely flammable and exceptionally poisonous. Hydrogen sulfide additionally happens obviously in sewers, manure pits, well water, oil and gas wells, and volcanoes.

It takes place certainly in crude petroleum, natural gasoline, and hot springs. Further, hydrogen sulfide is produced via bacterial wreck- down of natural materials and human and animal wastes, e.g., sewage.

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what products are formed when cis-3-methyl-3-hexene reacts with hydrogen bromide? a) (2r,3s)-3-bromo-3-methylhexane b) (2r,3r)-3-bromo-3-methylhexane c) (2s,3r)-3-bromo-3-methylhexane d) (2s,3s)-3-bromo-3-methylhexane e) all of the above answers

Answers

The product formed when cis-3-methyl-3-hexene reacts with hydrogen bromide is 2s,3r)-3-bromo-3-methylhexane This happens through  SN1 reaction.

Cis-3-methyl-3-hexene will react with HBr through SN1 reaction. First, the H from HBr will add to the less substituted carbon in the double bond following Markonikov's rule to form a stable tertiary carbocation intermediate.

The ionic addition of hydrogen halides to alkenes proceeds through SN1. The first step involves the protonation of the alkene by the hydrogen halide that is present. This step follows the Markonikov's rule, which predicts that the proton will add to the less substituted carbon in the double bond or to the more substituted carbon atom to form the more stable carbocation. The next step is the addition of the halide ion to the carbocation. Here, the halide can add to either side of the carbocation; thus, forming a mixture of R and S products.

Cis-3-methyl-3-hexene will react with HBr Through SN1. First, the H from HBr will add to the less substituted carbon in the double bond (Markonikov's rule) to form a stable tertiary carbocation intermediate. Br− will then add to either side of the carbocation to form a mixture of (3S)-3-bromo-3-methylhexane and (3R)-3-bromo-3-methylhexane.

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When heated, NaOH decomposes according to the following equation. If all of the water is produced as water vapor, what is the expected mass loss for a 8.87 gram sample of NaOH? Report your answer with three significant figures.

2 NaOH (s) → Na2O (s) + H2O (g)

Answers

The expected mass loss for an 8.87-gram sample of NaOH is 2.00 g.

What is the expected mass loss of a reaction?

The expected mass loss of a reaction is the mass of the reactant that is lost from the total mass of the reactant as a result of some of the products escaping as gases.

The expected mass loss for an 8.87 gram sample of NaOH is calculated as follows:

The equation of the decomposition of NaOH is reaction is given below as follows:

2 NaOH (s) → Na₂O (s) + H₂O (g)

From the equation of reaction, 2 moles of NaOH lose 1 mole of water

Molar mass of NaOH = 40 g

Mass of 2 moles of NaOH = 2 * 40 g or 80 g

Molar mass of water = 18 g

Hence, 80 g of NaOH loses a mass of 18 g

8.87 g of NaOH will lose 8.87 * 18/80 g = 2.00 g

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5. Hypothesis #2: If the specimen is nonliving, then cells
(Blank)
be present when the specimen
is viewed through a microscope.

Answers

If the specimen is nonliving, then cells be present on glass slide when the specimen is viewed through a microscope.

The Greek words for little and to observe are the origin of the word microscope. Giovanni Faber first used the term "microscope" on April 13, 1625. With the use of a microscope, we can see tiny objects that would otherwise be hidden from vision. Through the act of magnification, or increasing the picture of the item, microscopes help us view tiny objects.

The lowest distance between two objects that produces two pictures that can be distinguished from one another is the resolution of a microscope. For instance, human eyes' resolution is between 0.1 and 0.2 mm. This indicates that two items that are separated by 0.1 to 0.2 mm may be distinguished by human eyes.

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During glycolysis, what is the source of the chemical energy that is captured in atp?.

Answers

Answer:glucose

Explanation:

Energy released during the breakdown of glucose and other organic fuel molecules from carbohydrates, fats, and proteins during glycolysis is captured and stored in ATP.

If 0. 274 moles of a substance weighs 62. 5 g, what is the molar mass of the substance, in units of g/mol?.

Answers

The molar mass of the substance will be "228 g/mol".

Given values are:

Mass of substance = 62.5 g

Number of moles of substance = 0.274 moles

Now,

The Molar mass of the substance will be= Grams/Moles

By substituting the values, we get:

=62.5/0.274

=228g/mol.

What do you mean by molar mass?

Substances occupy room and have mass. Particles, which make up substances, frequently should be estimated in tests, and it is vital that these estimations are exact. Be that as it may, how might we quantify something so little in a precise manner? How would we typically quantify atoms? In the science lab, we utilize a device called a logical equilibrium to quantify in grams.

Through cautious estimation, researchers can decide the quantity of moles a particular response will require. A mole is a unit of measure that assists us with looking at particles of some random substance and its mass. Assuming we definitely know the quantity of moles required, we can utilize the idea of molar mass to ascertain the number of grams of the substance that are required. The molar mass, otherwise called sub-atomic weight, is the amount of the complete mass in grams of the multitude of particles that make up a mole of a specific particle. The unit used to quantify is grams per mole.

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Match these items.

1. changing from liquid to gas state
evaporation
2. the combining substances in a reaction
fusion
3. radiation
gamma rays
4. slow oxidation
burning
5. melting point of water
reactants
6. a reaction between a substance and oxygen
nuclear
7. pertaining to the nucleus of an atom
0 degrees C
8. to fuse or join together
rusting
9. rapid oxidation
thermo-
10. heat
oxidation

Answers

1,6,7 is correct




actually I don’t know

The sp3 hybridization has what percent s character and what percent p character?.

Answers

The percentage s character and what percent p character are 25% and 75 % respectively.

Sp3 hybridization refers to the integration character of one 2s-orbital and three 2p-orbitals to create 4 hybrid orbitals with similar characteristics. in order for an atom to be sp3 hybridized, it must have an s orbital and 3 p orbitals. whilst 1 s and 2 p are superimposed.

Calculation:-

Sp³ = s + 3P

percentage s character = 1/4 × 100

                                        =  25 %

Percentage P character = 3/4 × 100

                                        = 75%

They shape the sp2 hybrid orbital, and the process is called sp2 hybridization. then again, whilst 1 s is superimposed with three p atomic orbitals, they shape a brand new hybrid orbital, named the sp3 hybridized orbital. Orbitals. Hybridized structures. sp.

The time period sp3 hybridization refers to the integration of a man or woman of one 2s-orbital and three 2p-orbitals to create four hybrid orbitals with comparable traits. in order for an atom to be sp3 hybridized, it needs to have an s orbital and three p orbitals.

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HELP ASPPP PLEASE THANKY OU do 6 and 7

Answers

Since you will want to keep the three small vials of vaccine cold ( between 2 and 8 degree Celsius) for up to 24 hours you will need an exothermic reaction.

An exothermic reaction can be defined as the reaction in which the energy is released in the form of heat. when we kept water in the freezer , water molecules releases the heat to the surroundings and tend to freeze to ice form.

Thus, Since you will want to keep the three small vials of vaccine cold ( between 2 and 8 degree Celsius) for up to 24 hours you will need an exothermic reaction.

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Consider this chemical equation: 2Na(s)+Cl2(g) 2NaCl(s)In this reaction, sodium (Na) is: .In this reaction, chlorine (Cl2) is: .In this reaction, sodium chloride (NaCl) is: answer is soild , gas , soild 2nd part AgNO3 and Cu(NO3)2 3rd part is sliver Display rules are cultural norms that relate to the __________ component of emotion. bacteria may be involved in both the production or food and in its decay. multiple choice 1 false true 2. the presence of microbes in food can be . multiple choice 2 beneficial, harmful, or neutral harmful beneficial or harmful but not neutral beneficial neutral 3. a single species of bacteria grows best at multiple choice 3 a broad range of temperatures ranging from freezing to boiling. a modest range around a minimum temperature. a modest range around an optimum temperature. different temperatures, based on the availability of oxygen. different temperatures, based on nutrient availability. 4. the type of food-borne infection known as an intoxication is caused by multiple choice 4 toxins produced by microbes as they grow in the food. growth of the microbe in the intestinal tract and intestinal lining. toxins produced by the microbe in the intestinal tract. the buildup of oxidative byproducts such as o- in the food. the buildup of microbial waste products such as lactic acid. Would you rather have the best Thanksgiving meal with complete strangers or the worst Thanksgiving meal with your friends and family?"" Listening to music has been shown to produce which of the following effects in patients recovering from cardiac surgery?decreased painincreased anxietyunchanged heart rateincreased heart rate How is the movement of paramecium and volvox similar? Both -move toward light.O use cytoplasmic streaming.O use cilia to move.O move away from light. The solution to the inequality 17 + 2x 19 4x is x k for some number k. What is k? X=58 4371no bots fr neither you nor I ___ responsible for the bad result What are the present tense conjugations of resumir? an electron is moving with a velocity of 4.3 x 106 m/s in a uniform magnetic field of strength 3.5 t. the velocity vector makes a 55o angle with the magnetic field. what is the magnitude of the magnetic force on the electron? The knight undertakes a quest to A. discover the most beautiful noblewoman in England B. find a perfect wife for himself C. learn what it is that women want most D. protect women from evil upon the road to Canterbury The highet point where the protagonit come face to face with and triggle againt the main conflict If the president, vice president, and leaders of congress were all unable to hold office, who would assume the office of president?. Helps me please. Im so confused This assignment is about transversals of parallel lines: solve for x! It would be great if someone can help me solve this since its due soon! Explain something you found easy in GMetrix in preparation for the IBC. Explain something you found difficult in GMetrix in preparation for the IBC. The right to receive a proportionate share of any assets remaining after the corporation goes out of business, sells its assets, and pays off its liabilities is the right of. Gene A and Gene B are neccessary for normal hearing. A deaf man married with a deaf women. all childrens have normal hearing. What is the - Geno type of their Parents? using the procedures offered in the textbook, estimate the possible market size for the following products manufacturers and distributors could sell in the mcallen-edinburg-mission metropolitan area: solar energy roof