The pink substance different from the green substance because the pink solution is thought to have a lesser intermolecular force than the green solution, which causes molecules to disperse as a result.
Consider the attraction between the molecules of the pink substance to be weaker than that of the molecules of the green substance. Each of its molecules separates from the others. It's important to take into account the following data:
In comparison to the green substance, the attraction between the molecules in the pink substance is thought to be less. It moves apart from one another and changes from liquid to gas.
So, we can say that the pink solution is thought to have a less intermolecular force than the green solution, which leads to the dispersion of molecules.
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The liver filters the drug tylenol in an exponential way. Suppose tests show that after 12 hours pass, since taking a does of 400 milligrams, 50 milligrams remain in the blood stream. What is the half life of of tylenol?.
The half-life of Tylenol is 3.999, after getting filtered by the liver in exponential form.
What is Half-life?
The amount of time (half-life, [tex]t_{1/2}[/tex]) needed for a substance's quantity to decrease to half of its initial value. In a broader sense, the term is used to describe any exponential decay. In biology, the half-life of medications and other substances in the human body is considered in the medical sciences.
What is the Liver?
The liver is a significant organ in vertebrates and is responsible for detoxification as well as the production of the proteins and biochemicals required for growth and digestion. It is situated beneath the diaphragm in the right upper quadrant of the abdomen. It also controls how much glycogen is stored, breaks down red blood cells, and makes hormones.
What are the calculations?
N(t) = No × (1/2) t/t ½ (Formula for half-life)
Where,
N(t) = substance remaining
No = Initial quantity = 400
t = time elapse = 12
t ½ = Half-life
Here,
No =400
t = 12 hours
N × (12) = [tex]400 * (\frac{1}{2}) ^{\frac{12}{\frac{1}{2} } }[/tex]
50 = 400 (1/2)
Further simplifying = t ½ = 3.999.
Hence, the half-life of Tylenol is 3.999.
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5. Element X exists as diatomic molecules. In which group of the Periodic Table is X placed?
A Group 0
B Group I
C Group II
D Group VII
Calcium carbonate decomposes if heated to form calcium oxide and carbon dioxide. If 24.5 g of calcium carbonate decompose how many moles of calcium carbonate reacted?
Calcium carbonate, CaCO3, decomposes to form calcium oxide, CaO, and carbon dioxide, CO2. The balanced chemical equation for this decomposition reaction is:
CaCO3 -> CaO + CO2
To determine the number of moles of calcium carbonate that react, you need to know the molar mass of calcium carbonate. The molar mass of calcium carbonate is 100.09 g/mol.
Now, you can use the molar mass of calcium carbonate to calculate the number of moles of calcium carbonate that react. To do this, divide the mass of calcium carbonate by its molar mass:
24.5 g CaCO3 / 100.09 g/mol = 0.2447 moles CaCO3
Therefore, 0.2447 moles of calcium carbonate react when 24.5 g of calcium carbonate decompose.
the density of aluminum is 2.702 g/cm3. what is the final liquid level of water if 1.130 ounces of aluminum is dropped into a graduated cylinder containing 15.90 ml of water?
The final liquid level of water is 27.76 mL after considering the 1.130 ounce of aluminum dropped in cylinder.
Chemically speaking, aluminum is a 13-atomic-number chemical element with the symbol Al. Aluminum's density is lower than that of the majority of common metals, being around one third that of steel. Due of its high affinity for oxygen, it develops a protective oxide coating on its surface when exposed to air. It has a strong visual resemblance to silver due to its color and sparkling ability to reflect light. It is soft, ductile, and non-magnetic. It only has one stable isotope. It is a post-transition metal that belongs to the boron group chemically and typically forms compounds in the +3 oxidation state, like other members of the family. Aluminum typically coexists with oxygen in nature in the form of oxides due to its strong affinity for oxygen. As a result, it is typically found in rocks in the Earth's crust rather than in the mantle and is hardly ever discovered as a free metal. After silicon and oxygen, it is the third most prevalent element on Earth.
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how many signals would you expect each of the following molecules to have in its 1h and 13c spectra?
Each of the following molecules have (3,4)(2,2) and (5,5) signals respectively in its 1H and 13C spectra.
1H-NMR uses NMR spectroscopy to determine a substance's molecular structure by applying nuclear magnetic resonance to hydrogen-1 nuclei. The 13C nuclear magnetic resonance relates specifically to the carbon skeleton, and not only to the proton that is linked to it . Number of signals indicates the total number of distinct carbons or sets of carbons with equivalent properties. The splitting of the signal provides information about the number of hydrogens that are bonded to each carbon.
The molecule 1 will give 3 absorption signals in 1H-NMR and 4 absorption signals in 13C-NMR.The molecule 2 will give 2 absorption signals in 1H-NMR and 2 absorption signals in 13C-NMR.The molecule 3 will give 5 absorption signals in 1H-NMR and 5 absorption signals in 13C-NMR.The complete question is attached.
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an atom in an excited state has a 1.0% chance of emitting a photon in 0.20 ns. how long will it take for 25% of a sample of excited atoms to decay?
An atom in an excited state has a 1.0% chance of emitting a photon in 0.20 ns. it will take t=0.1521 for 25% of a sample of excited atoms to decay
How to solve ?We will use the formula , Ne=N0e-t/T , here t=0.20ns which is given to us.It is time taken in emitting of photon. We need to find T,
0.99Ne=N0e-t/T-0.99Ne=N0e-(0.20ns)/T
0.99=e-(0.20ns)/T
By taking logarithm on both sides,
ln(0.99)=lne-(0.20ns)/T
ln(0.99)= -(0.20ns)/T
By solving we get , T=1.89 ns
Now we will find time during which 25%;
We will use the equation ,
0.75N0=N0e-t/T
0.75N0=N0e-t/1.89 ns
We will take logarithm on both sides,
ln(0.75N0)=N0e-t/T
ln(0.75N0)=N0e-t/1.89 ns
We will get by solving the equation ,
t=0.1521
How are growth and decay rates determined?Population growth can be modeled using the formula P = P 0 e r t, where is the initial population, is the growth rate, and is the passage of time. The formula for the exponential decay function is f (x) = a (1 r) x, where is the initial value and is the rate of decay.
How is decay rate calculated?The number of radioactive nuclei that decrease per unit of time is the rate of decay, or activity, of a sample of a radioactive substance. The amount of time needed for the reactant concentration to drop to half its initial value is known as the half-life of a reaction.
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what is the height of a column of liquid in a barometer if the density of the liquid is 0.99 g/ml and the local atmospheric pressure is 0.95 bar?
The height of a column of liquid in a barometer if the density of the liquid is 0.99 g/ml and the local atmospheric pressure is 0.95 bar is 0.791 m,
As we know that the relation of pressure and height is given as,
P = hρg
Where,
h is the height of the column
P is the pressure
ρ is the density
g is the acceleration due to gravity
Given,
P = 0.95 Bar
h = ?
ρ = 0.99 g/ml
Substitute the values to obtain the value of h,
∴ h = P/ρg
⇒ h = 0.95 Bar/(0.99 × 0.98)
⇒ h = 0.791 m
Hence, the height of a column of liquid in a barometer if the density of the liquid is 0.99 g/ml and the local atmospheric pressure is 0.95 bar is 0.791 m.
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Which of thee will take the LONGEST time to oberve?
One moon-phae cycle
One ocean-tide cycle
An acorn growing into an adult tree
A caterpillar becoming a butterfly
A corn growing into an adult tree will take the longest time to observe. Hence, the third option will be correct.
Our moon completes one full orbit of the Earth in 27 days, 7 hours, and 43 minutes. Coastal locations see two high and two low ocean tides every 24 hours and 50 minutes because the Earth spins through two tidal "bulges" every lunar day. There are 12 hours and 25 minutes between the high tides. The sea level at shore can change from high to low or from low to high in the six hours and 12.5 minutes.55 to 95 days pass after corn is sown before it begins to produce mature ears. If you want to get scientific, the days that achieve a specific minimum threshold temperature are known as "increasing degree days," and they range from 55 to 95 in number.Depending on the species and the growth conditions, the butterfly stays in the caterpillar stage for a total of roughly 2 to 5 weeks.Thus the longest time is taken by the corn tree to grow into adult tree that is of 55 to 95 days.
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Describe in a model with a caption how water can dissolve salts.
Must include:
001
molless
1. Water molecule and partial charges
2. Salt molecule and charges
3. Show interactions (attract and repel)
4. Show beginning, middle and end (undissolved, partially dissolved and fully
dissolved)
View
The ionic link that held sodium and chloride ions together is broken when water molecules force the ions apart. When the salt compounds are separated, water molecules surround the sodium and chloride atoms.
What is dissolution?The ionic link that held sodium and chloride ions together is broken when water molecules force the ions apart. As the salt compounds are separated, water molecules surround the sodium and chloride atoms.
In terms of energy, a solid can be dissolved into a solvent to create a solution in three steps.
Separation of a pure solid into distinct particles is the first step. Step 2: Pure solvent is divided into distinct particles. Combining the particles into a solution is step three.Thus, this way, salt dissolution takes place.
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If a solution of oxalic acid (H₂C2O4) has a molarity of 0.405 M, how many milliliters of
solution are needed to obtain 18.0 g of oxalic acid? (The molar mass of oxalic acid is
90.04 g/mol.)
Write your answer using three significant figures.
mL
To solve this problem, you can use the following formula:
M = m/V
where M is the molarity of the solution, m is the mass of the solute, and V is the volume of the solution. In this case, you are given the molarity and the mass of the solute, and you need to find the volume of the solution.
Substituting the given values into the formula and solving for V, you get:
V = m/M = (18.0 g) / (0.405 M) = 44.3 mL
So, you need 44.3 mL of the solution to obtain 18.0 g of oxalic acid.
what is the wavelength of radiation with a frequency of 2.50 x 10^15 HZ? Does this radiation have a longer or shorter wavelength than red light?
The wavelength of the light is 1200 nm and it is longer than red light.
What is the wavelength?The term wavelength has to do with the distance that has been traveled by a wave. We know that a wave is a disturbance on a medium that transfers energy and in this case, the red light is part of the electromagnetic spectrum of light.
We have the information from the question that the wavelength of radiation with a frequency of 2.50 x 10^15 HZ and the task that we have here is that we should be able to obtain the wavelength of the frequency that is given.
We then have;
c = λf
c = speed of the wave
λ = wavelength
f = frequency
Then;
λ = 3 * 10^8/ 2.50 x 10^15 HZ
λ = 1.2 * 10^-7 or 1200 nm
Since the wavelength of red light is 620 - 720 nm hence this is definitely longer than red light.
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Which of the following is NOT a part of adenosine diphosphate?
glucose, ribose, adenine, two phosphate groups
Answer:
a. glucose c. ribose b. adenine d. two phosphate groups user: all organisms need energy to perform different functions. cells are able to ...
If a 3.1g ring is heated using 41.8 J of energy, its temperature rises 17.9°C. Calculate the specific heat capacity of the ring.
The specific heat capacity of the ring of mass 3.1 g is 753.3 J/kg.°C.
What is specific heat capacity?Specific heat capacity is defined as the amount of heat energy needed to increase the temperature of 1kg of a substance by 1°C.
To calculate the specific heat capacity of the the ring, we use the formula below.
Formula:
c = Q/mΔt.......... Equation 1Where:
c = Specific heat capacity of the ringm = Mass of the ringΔt = Temperature riseQ = Quantity of heatFrom the question,
Given:
m = 3.1 g = 0.0031 kgQ = 41.8 JΔt = 17.9°CSubstitute these values into equation 1
c = 41.8/(0.0031×17.9)c = 753.3 J/kg.°CHence, the specific heat capacity of the ring is 753.3 J/kg.°C.
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A student collects the following data during an experiment. Experimental data mass of empty beaker 77. 25 g mass of 100 ml water 100. 00 g mass of salt 20. 00 g total mass before mixing 197. 25 g after the salt and water are mixed in the beaker and stirred for 1 minute, what will be the mass of the contents?.
The total mass of 197.25 g is made up of 100 g of 100 L of water, 20 g of salt, and 77.25 g beaker. Mass of empty beaker=mass of the content, By the Law of Conservation of Mass. 197.25 g - 77.25 g or 120 g.
What is the principle of mass conservation?According to the rule of conservation of mass, the combined mass of all reactants and products in a closed chemical reaction system will be equal. In other words, if 10g of reactant A and 5g of reactant B combine, the resulting product, AB, will weigh 15g. Mass is therefore retained.
How is the law of mass action calculated?As a result, according to the law of mass action, the equilibrium constant, at a given constant temperature, is equal to the product of the reactant concentrations, each raised to the corresponding stoichiometric coefficients, divided by the product of the concentration of products, raised to the respective.
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A student designed an experiment to investigate the number of particles in a given sample of table salt. To calculate the number of particles, he uses the Avagadros number. Mention briefly the procedure of your experimental design.
The amount of moles in a sample should be multiplied by the avagadro number (6.0221023 atoms) to determine the number of particles.
How is the Avogadro number used?Any pure substance's mass and molecular count can be converted using Avogadro's number. If you are given a sample's mass (such as that of a snowflake), convert it to moles using Avogadro's number, and then use moles to represent molecules.
Briefing:First, determine which element and how much of it are present in the issue.
Step two is to calculate the element's molecular mass.
Step 3: Calculate the number of moles in the mass by dividing it by the mass of one mole.
the formula is: moles = specified mass mole mass
Step 4: Multiply the amount of moles you calculated in Step 3 by Avogadro's number to get how many atoms are contained in that amount.
Avogadro's number = number of atoms + number of moles
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a mole of sulfur dioxide gas has a mass of 64.1 g. find the rms speed of a single sulfur dioxide molecule at a temperature of 312 k
a mole of sulfur dioxide gas has a mass of 64.1 g. 8.82ms is the rms speed of a single sulfur dioxide molecule at a temperature of 312 k
Given, Temperature (T) = 314 K
Mass of 1 mole sulfur dioxide, M = 64.1 gm
Now the RMS speed of a single sulfur dioxide is √3RT/m = 8.82m/s
The valuation of the root of the sum of a squares of a stacking speed multiplied by the number of values is the root-mean square (RMS) velocity. The RMS pace of gas molecules is an indicator of the particulate speed in a gas. It is the average of the squares velocity of a gas's molecules. As we will see in Dispersion of Single - molecule Speeds, the rms speed isn't the ordinary or most likely speed of molecules, but it offers an easily premeditated guesstimate of the molecules' speed that's also related to their kinetic energy. vrms=(3RT/M) is the RMS velocity of gas particles, where R is the gas constant, T is the temperature of the gas, and M is the molecular mass of the gas.
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which of the following processes is spontaneous?6)a)reaction of sodium with oxygenb)water flowing uphillc)precipitation of solute from a saturated solutiond)a mixture of two gases separating into pure compounds
Process that is spontaneous is : d) mixture of two gases separating into pure compounds.
What is meant by spontaneous process?In thermodynamics, spontaneous process is that process which occurs without any external input to the system. A more technical definition can be the time-evolution of a system in which it releases free energy and moves to a lower, more thermodynamically stable energy state.
We can assess the spontaneity of process by calculating entropy change of the universe. If ΔSuniv is positive, then we can say that the process is spontaneous. As spontaneous processes are characterized by decrease in system's free energy, they do not need to be driven by an outside source of energy.
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When calcium chloride is mixed with water it produces a large amount of heat that can cause boiling. The end product is calcium hydroxide and chlorine gas.
a. Rewrite the chemical reaction as a word equation
b. State the evidence that a chemical reaction has occurred
c. Is the reaction exothermic or endothermic? Explain your reasoning
The chemical equation of the reaction of calcium chloride with water is given below:
CaCl₂ (s) + H₂O (l) ----> Ca(OH)₂ (aq) + Cl₂ (g)A chemical reaction occurred because new products are formed; calcium hydroxide and chlorine gas.
The reaction is an exothermic reaction because heat is evolved to the surroundings.
What is the nature of the reaction of calcium chloride with water?The reaction of calcium chloride with water is a reaction that produces a lot of heat. This type of reaction is known as an exothermic reaction.
An exothermic reaction is a reaction in which heat is released to the surrounding during the formation of products.
When calcium chloride is mixed with water it produces a large amount of heat that can cause boiling. The end product is calcium hydroxide and chlorine gas.
The equation of the reaction is given below:
CaCl₂ (s) + H₂O (l) ----> Ca(OH)₂ (aq) + Cl₂ (g)
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in 4.8 days the number of radioactive nuclei decreases to one-eighth the number present initially. what is the half-life (in days) of the material?
Radioactivity is a natural phenomenon by which a heavy unstable nucleus disintegrates into lighter and stable nuclei. The time after which the number of nuclei of original nucleus reduces to half is termed as half life.( t 1/2 )= 1.6 days.
How to solve?We are given:
time taken to reduce the radioactive nucleus to (1/8)th of original number is t = 4.8 days
Finding the half life, (t1/2)
Let n be the number of half lives, after which number of nuclei reduces to (1/8)th of original number, therefore
(1/2)n =1/8
n=3
Number of half lives passed in 4.8 days is n = 3, therefore half life is calculated as:
t1/2 =t/n
t1/2 =4.8 days/3
t1/2 =1.6 days
What does a decay half-life mean?A half-life is the amount of time it takes for something to go from 100% to 50%. The phrase is most frequently used in reference to radioactive decay, which happens when energetic atomic particles that are unstable lose momentum. There are 29 elements that have been shown to be capable of going through this process.
We compute half-life because...Knowing an element's alpha, beta, or gamma decay can help someone properly protect their body from excessive radiation. Within one half-life, the amount of radioactive nuclei present at any particular time will be reduced to half.
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A Race car starting from rest accelerates uniformmly at a rate of 4.9 m/s squared. What is the Car's speed? the answer is 44. (any number, they differ based on the website) They used different formulas to find the final velocity but all of them had one thing in common they had the number "2" in the formula. Which I have no idea where they got from. So my question is. "Where did they get the 2?"
The speed or velocity of the car after it has traveled 200 meters is 44.3 m/s.
What is the velocity of the car?The velocity or speed of the car is determined using the equation of motion in a straight line given below as follows:
v² = u² + 2as
where;
v is the final velocity = ?u is the initial velocity = 0 m/sa is the acceleration = 4.9 m/s²s is the distance traveled = 200 mSolving for the speed or velocity of the car, v;
v = √ (u² + 2as)
v = √ (0² + 2 * 4.9 * 200)
v = √ 3920
v = 44.3 m/s
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Complete question:
A race car starting from rest accelerates uniformly at a rate of meters per second. What is the car's speed after it has traveled 200 meters?
A. 1960 m/s
B. 62.6 m/s
C. 44.3 m/s
D. 31.3 m/s
how many hydroxide ions would be added to both sides of the reaction if the redox reaction below was balanced under basic conditions?
According to the rule of a redox reaction, the number of hydroxide ions that would be added depends on the number of net protons present in the reaction to balance the reaction.
How to balance a Redox Reaction in the basic medium?The following steps can be used to balance a redox reaction in a basic solution:
1) The reaction should be split in half.
2) Equilibrate all the elements except for H and O.
3) Add H2O to bring the O atoms into balance.
4) Add H+ to bring the H atoms into balance.
5) Neutralize any H+ by adding OH- ions to both sides.
6) To create H2O, combine H+ and OH-.
7) Simplify by eliminating the surplus water.
8) Add e- to balance the charges.
9) Combine the half-reactions, then condense.
According to the rule of a redox reaction, the number of hydroxide ions that would be added depends on the number of net protons present in the reaction to balance the reaction.
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If The Bond Angle Between Two Adjacent Hybrid Orbitals Is 180 Hybridization?
A. Sp3
B. Sp
C. Sp2
D. Sp3d
If The Bond Angle Between Two Adjacent Hybrid Orbitals Is 180 Hybridization is Sp2.
What is an orbital, exactly?A space object appears to follow an orbit as it moves around another space object. A satellite is a spacecraft that orbits the planet. A natural satellites that matches the Earth nor moon is one possibility. Moons are satellites in the orbits of numerous nations. A man-made satellite, such as the Space Stations, provides an additional choice.
How are orbitals created?The positions of the electrons are dictated by the entire molecule when several atoms unite chemically to form a molecule, combining the atomic orbitals into molecular orbitals. The molecular orbitals are occupied by the electrons of the component atoms. There are two electrons in each orbital, and their spins vary. An atom's orbital is the area of space where an electron resides.
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HELP! (Chemistry problem that deals with converting moles to grams and finding if the person in the world problem has enough to perform the action they wish to do)
EITHER EXPLAIN OR SHOW WORK SO I CAN HOPEFULLY UNDERSTAND THIS CONCEPT - PLEASE.
Billy will make about 1749.04 grams of calcium bromide, more than the amount needed by the instructor with the given 350 g of calcium.
Stoichiometric problemWhen calcium is made to react with bromine by a particular amount in a beaker containing bromine gas, the equation of the reaction that occurs is as follows:
[tex]Ca + Br_2 --- > CaBr_2[/tex]
From the equation, the mole ratio of calcium to the calcium bromide that is formed is 1:1.
Recall that: mole = mass/molar mass
The molar weight of calcium is 40 g/mol, thus, 350 g of calcium would be equivalent to:
Mole of 350 g calcium = 350/40 = 8.75 mol
The equivalent mole of calcium bromide formed will also be 8.75 mol. The molar mass of calcium bromide is 199.89 g/mol. Thus, the mass of 8.75 mol calcium bromide would be:
Mass = mole x molar mass
= 8.75 x 199.89
= 1749.04 grams
In other words, 1749.04 grams of calcium bromide would be formed from 350 grams of calcium. Granted that enough bromine is available, Billy will make more than enough calcium bromide needed by his instructor.
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what is my actual yield of uranium hexabromide if i start with 100.0 grams of uranium and get a percent yield of 83.0% ? 301 grams ubr6
Actual yield of the chemical reaction provided is 197.54g.
In chemistry, yield or reaction yield refers to a measure of the quantity of moles of a product formed in relation to the reactant consumed, obtained in a chemical reaction, usually expressed as a percentage. The actual yield refers to the quantity of a product that is obtained from a chemical reaction. The calculated or theoretical yield refers to the amount of product that could be obtained from a reaction if all of the reactant converts to product.
Based on the equation:
U + 3Br2 → U Br6
The masses in the balanced chemical reaction are:
U = 238g
3Br2 = 3 x 160 = 480g
U Br6 = 718 g
The ratio of masses of Uranium to that of Bromine is less in the balanced chemical equation than that of in the given masses, hence Uranium is the limiting reagent. 100 g U will be consumed first and will act as a limiting reagent.
Percentage yield = Actual yield/ Theoretical yield *100
83 = Actual yield/ 238 *100
Actual yield = 197.54g
Note: The question is incomplete. The complete question probably is: U + 3Br2 → U Br6. What is my actual yield of uranium hexabromide if I start with 100 grams of uranium and 250 grams of bromine, and get a percent yield of 83%?
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name the three alkenes using systematic names. a. a carbon carbon double bond where one alkene carbon is bonded to two methyl groups. the other alkene carbon is bonded to one methyl and one hydrogen. the name of compound a is: b. a carbon carbon double bond, where one alkene carbon is bonded to two hydrogens. the other alkene carbon is bonded to c h 2 c h 3 and c h 2 c h 2 c h 3. the name of compound b is: c. a carbon carbon double bond where one alkene carbon is bonded to two c h 3 groups. the other alkene carbon is bonded to c h 2 c h 2 b r and hydrogen. the name of compound c is:
Response to inquiry A: We choose a carbon chain with the greatest number of carbon atoms according to the IUPAC nomenclature standard. Since there are 4 carbon atoms in this chain, butane is the parent molecule. The double bo is present in the molecule.
The Interdivisional Committee on Terminology, Nomenclature, and Symbols and Division VIII - Chemical Nomenclature and Structure Representation are two IUPAC groups that play major roles in this activity. IUPAC is the widely acknowledged authority on chemical nomenclature and terminology. One of IUPAC's main activities is the development of recommendations to establish unambiguous, uniform, and consistent nomenclature and terminology for particular scientific fields. These recommendations are typically presented as glossaries of terms for particular chemical disciplines, definitions of terms relating to a group of properties, nomenclature of chemical compounds and their classes, terminology, symbols, and units in a particular field, classifications and uses of terms in a particular field, and co-references. The Recommendations are printed in the Pure and Applied journal of the IUPAC.
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You decide to flip a coin to determine whether to do your chemistry or physics homework first. The coin is flipped up. Compute for the velocity of the coin at the top of its trajectory.
For the coin that is being flipped straight up we have the velocity at top of its trajectory (at the maximum height) will be 0.
The velocity of the coin at the top of its trajectory is zero because in maximum height the ball will stop and then will start to move down.
The acceleration will be zero if there is no variation in velocity of the object. At the highest point, the object has the no or the zero kinetic energy where all of its kinetic energy is converted into potential energy . The velocity of coin will be momentarily zero when it reaches its maximum height.
Therefore the velocity will be zero and the object does not accelerate.
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if you had 8 moles of ch4, how many moles of o2 are needed to complete the above reaction and how many moles of h2o would be produced?
Number of moles of O2 required:
we will solve this problem by basic reaction theory by balancing the chemical equation
What happens when methane and oxygen reacts?When methane (CH4) reacts with oxygen it forms carbon dioxide and water. Here we notice that the reaction is not balanced as the number of hydrogen atoms are different on each side. The same is true for the number of oxygen atoms.
The resulting reaction for the statement will be:
CH4 + 2O2 ⇒ 2H2O + CO2
1 2 2 1
8mol 16 16mol 8mol
so ;
16 moles of O2 are required
16 moles of H2O is produced
Number of moles of O2 required:
we solved this problem by basic reaction theory by balancing the chemical equation
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if an electron is in a stationary state of an atom, is the electron at rest? if not, what does the term mean?
No, a stationary state is one that has a specific amount of energy, total angular momentum, and parity; in a stable state, the particle is moving while possessing all of these physical characteristics.
Who or what is an electron?A negative charge subatomic particle known as an electron can either be free or attached to an atom (not bound). Each of the three main types of components within an atom is an atom that is bonded to it; the other three are proton and neutrons.
What is the electron example?The electron, the smallest constituent part of an atom, has a negative surface charge. Protons and electrons are present in an atom in a neutral state in an equal number. The hydrogen ion only possesses one atom or one proton. On the other way, the uranium atom possesses 92 protons, which means 92 electrons.
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A tree rooted into a hillside falls during a storm, the tree rolls down the hill at a rate of 13m / s how many km/hr is it traveling?
The value of the speed of the fallen tree in km/hr would be 46.4 km/hr.
Unit conversionThe problem here is about converting the speed of an object from one unit to another. Specifically, we are to convert from m/s to km/hr.
Speed is the function of distance and time. Thus, the distance needs to be converted to km from m and the time to hr from s.
13 m/s is equivalent to 13 m distance and 1 second time.
Recall that:
1000 m = 1 km
13 m = 13/1000
= 0.013 km
3600 seconds = 1 hr
1 second = 1/3600
= 0.00028 hour
The speed of the fallen tree in km/hr would then be:
0.013/ 0.00028 = 46.4 km/hr
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what are the coefficients in front of bro3-(aq) and br-(aq) when the following equation is balancedin an acidic solution: bro3-(aq) br-(aq) br2(aq)?
The coefficients in front of Bro3-(aq) and Br-(aq) when the equation( BrO3 -(aq) + 5 Br-(aq) + 6H+(aq)→ 3Br2(aq) + 3H2O (l)) is balanced in an acidic solution is : 1, and 5 respectively.
What is a balanced equation?A balanced equation is an equation for a chemical reaction in which number of atoms for each element in the reaction and the total charge are same for both reactants and the products. Both the mass and charge are balanced on both sides of the reaction in a balanced equation.
A balanced equation is a chemical equation in which mass is conserved and there are equal number of atoms of each element on the both sides of the equation.
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