Q5: If you were to sketch another graph on top of this one, how the graph would look if you pulled the
stick back further?

The empirical formula for the given compound B₃H₆N₃ is BH₂N. Therefore, option (1) is correct.

The empirical formula can be described as the simplest ratio of the number of different atoms present in a compound. The molecular formula of the compound can be defined as the actual number of each atom present in a molecule. This formula is generally used and is also a multiple of the empirical formula of a compound.

The empirical formula provides the ratio of the number of atoms of different elements in a given compound. The percentage composition of a compound gives the empirical formula of that compound.

Given the compound is inorganic benzene which has a molecular formula is  B₃H₆N₃. We can write this molecular formula as (BH₂N)₃. Therefore the empirical formula of the given compound is BH₂N.

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The food and agriculture industries' most complete carbon and net-zero route planner.

Coal, toxic gases, and crude oil—which are all used as fuel—are utilized to manufacture gasoline. It is employed to create a variety of products, such as polymers and steel, which is an alloy made of iron and carbon. Even black ink for printing and painting is produced with it.

The majority of carbon is kept in reservoir, or sinks, such rocks and sediments; the remaining portion is kept in the atmosphere, the oceans, and living things. Through the respiration of both plants and animals, carbon is returned to the atmosphere.

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Precipitation is one of the many ways that water is cycled from the atmosphere to Earth and or the Ocean. the ways that we describe precipitation are : rain. sleet , snow and hail.

The precipitation is one of the water cycle. the  steps in the water cycle is  the precipitation, collection , evaporation , and condensation. the precipitation steps involved :   rain. sleet , snow and hail.

Thus, Precipitation is one of the many ways that water is cycled from the atmosphere to Earth and or the Ocean. the ways that we describe precipitation are : rain. sleet , snow and hail.

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Explanation:

These soft areas are the gaps between the skull's bones, when bone growth hasn't finished. As a result, the skull can be shaped during birth. By the age of two to three months, the smaller spot at the back usually closes. Around age 18 months, the larger spot in the front frequently closes.

The sodium-potassium pump goes to work after the contraction has occurred in order to repolarize the cells.

The sodium-potassium pump is a pump that functions in transporting sodium ions out of the cell and potassium ions inside the cell.

At the resting membrane potential, the sodium-potassium pump ensures that the interior of the cell is negative relative to outside the cell because three sodium ions are pumped out of the cell for every two potassium ions that are pumped into the cell.

When an action potential reaches the cell, the pump opens and allows sodium ions into the cell thereby depolarizing it. Afterward, the sodium-potassium pump works to repolarize the cell by pumping sodium out and potassium in.

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Answer:

Basic

Explanation:

Solutions with a ph less than 7 are acidic, solutions with a ph greater than 7 are basic, and solutions with a ph equal to 7 are neutral.

Answer:

copper

Explanation:

First, write down the reaction and notice the ratio of moles of which the reactants react.

the equation (i'm too lazy to write states of matter and since it doesnt matter in this problem i'm not going to. it is balanced, however) is:
Cl2 + Cu -> CuCl2

as you can see, one mole of chlorine gas reacts with one mole of copper.

since we have 75 moles of copper but only 70 moles of chlorine gas, after everything has been reacted we would expect 5 moles of copper to be left over. so, copper is the the reactant which is in excess

A conjugate acid-base pair is represented by H2CO3, HCO3.

Option d is correct.

A conjugate acid-base pair is a pair of substances that differ exclusively in the presence of a proton (H+) according to the Brnsted-Lowry definition of acids and bases. A proton given to a base creates a conjugate acid, while a proton taken away from an acid creates a conjugate base.

H2CO3 is created by adding CO2 and water. The hydrogen carbonate ion, which is the same thing, is created when the carbonic acid dissociates, producing a proton (H+) and bicarbonate ion (HCO3(1-)). Since the dissociation's end result is the bicarbonate ion, it is the conjugate BASE.

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The final temperature of the solution is  34.6°C.

We know that heat can be added or removed from a sample in the process of dissolution. The term dissolution has to do with the process by which a liquid is made to become mixed with a solid.

In this case we have the following information;

Mass of the sample =  90.0 g

Heat added =  3500.0 J

Initial temperature of the system = 25.0 °C

Heat capacity of the solution = 4.07 J g-1 °C

Using;

H = mcdT

H = heat added

m = mass of the sample

c = heat capacity

dT = temperature change

Then we have;

3500 = 90 *  4.07 (T - 25)

3500 = 366.3T - 9157.5

3500 + 9157.5 = 366.3T

T = 3500 + 9157.5/366.3

T = 34.6°C

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The pressure inside the container will become 0.71 atm if the piston is moved to the 1.40 L

To obtain the pressure inside the container, we'll begin by listing out the given parameters from the question. This is given below:

Since the temperature is constant, we can determine the pressure inside the container by using the Boyle's law equation as illustrated below:

P₁V₁ = P₂V₂

1.00 × 1.00 = P₂ × 1.40

1 = P₂ × 1.40

Divide both sides by 1.40

P₂ = 1 / 1.40

P₂ = 0.71 atm

Thus, from the calculation made above, we can conclude that the pressure inside the container is 0.71 atm

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Answer:

Below

Explanation:

Mole wt:

cu = 63.546

c x 2 =24

hx6=6

0 x 4 =64    total per mole = 157.546

Number of moles * Avagadro's Number  = number of molecules

    80 / 157.546     *  6.022 x 10^23 = 3.06 x 10^23 molecules

The net ionic equation for the reaction between copper and silver acetate is; [tex]Cu(s) + 2Ag^+ ====== > Cu^{2+} (aq) + 2Ag(s)[/tex]

The term net ionic equation has to do with the equation that shows the species that underwent a change in the reaction. As such, the ions that did not undergo a change does not appear in the net ionic equation for a given reaction.

In this case, what we have is the net ionic equation for the reaction between copper and silver acetate. We know that the silver ion is going to replace the silver so that we have;[tex]Cu(s) + 2Ag^+ ====== > Cu^{2+} (aq) + 2Ag(s)[/tex]

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The structural formula of the compounds from the task given above are as follows:

Methane, CH4: CH4CH4

Ethane, C2H6: (CH3)2

Propane, C3H8: CH3CH2CH3

Pentane, C5H12: CH3(CH2)3CH3

Hexane, C6H14: CH3(CH2)4CH3

A structural formula of an organic compound simply represent the various locations of atoms and bonds which makes up the organic compound.

It explains the exact point to fix bonds and atoms when writing the structural formula of a compound. That being said, organic compound simply refers to those classes of chemical compounds containing carbon and hydrogen.

They are different homologous families including the alkanes, alkenes, alkaynes, alkanols, alkanoates, alkanals and so on and so forth.So therefore, it can be deduced from the simple explanation above that the structural formula of compounds also enables us to clearly give the correct nomenclature of the compound.

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Answer:

The ecliptic.

is the correct answer

The number of moles of the KClO₃ required to produce 5.15 moles of KCI is equal to 5.15 moles.

A mole can be described as a standard unit that is utilized to calculate the huge number of atoms, molecules, ions, or other particular particles. The mass of the 1 mole of any element is known as atomic mass and that of any compound is known as molar mass.

The number of units present in one mole is equal to 6.023 × 10 ²³ which is known as Avogadro’s constant or Avogadro’s number.

Given the chemical reaction of the decomposition of KClO₃ is :

2 KClO₃ ⟶  2KCl  +  3O₂

Given, the number of moles of KCl = 5.15 moles

As from the given  decomposition chemical reaction,

Two moles of the KCl are produced from moles of KClO₃ = 2

5.15 moles of  KCl are produced from KClO₃ = 5.15 mol

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Answer:

7

Explanation:

valence electrons are the electrons in the outer shell

President Bush signed the Energy Policy Act in 2005 affect hydropower because Bush enacts the Energy Policy Act as law in an effort to address the rising energy issues. By offering tax breaks and credit guarantees for energy production of all kinds, including hydropower, the act altered American energy policy.

The revolutionary Architecture Hydraulique, written by French hydraulic and military engineer Bernard Forest de Bélidor, marked the beginning of the development of the modern hydropower turbine.

Note that the Energy Policy Act of 2005 was signed by President Bush on August 8, 2005. The Underground Storage Tank Compliance Act of 2005, Title XV, Subtitle B, amends Subtitle I of the Solid Waste Disposal Act, the primary law that established the underground storage tank (UST) program.

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The best way to preserve the fingerprint is by using a clear tape to lift the prints.

The fingerprints help us grab objects and also for grip. the 3 D version of the ridges enables us to pick things up. Patterns on the fingers play a very important role in the fine motor skills of the hands.

One of the most important uses of the fingerprints is to help investigators link one crime scene to another involving the same person. Fingerprint identification also helps investigators to track a criminal's record, their previous arrests and also convictions, which help in sentencing, probation, parole and pardoning decisions.

The print that are left on surfaces such as mirror can be carefully be lifted on a clear tape and can be seen it clearly.

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Answer:

If the dad has brown eyes, and the mom has blue eyes, then the kid will have blue eyes. If the dad has blue eyes and the mom has brown eyes, the kid will have brown eyes.

Explanation:

Answer: what the person above me said

Explanation:

Due to different structural compositions, humans and propane vary from one another.

Humans are made up of different elements than propane. For example, humans are made up of carbon, hydrogen, nitrogen, oxygen, and other trace elements, while propane is made up of carbon and hydrogen. This difference in composition leads to different properties. For example, humans are able to breathe and propane is not.

Humans and propane have different properties because they are made of different materials. Propane is made of hydrocarbons, while humans are made of cells.

The main difference between humans and propane is that humans are living while propane is not. This means that humans are made of cells that propane does not have. Additionally, humans breathe and have a circulatory system, while propane does not. Finally, humans are able to think and feel, while propane cannot.

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The molecular formula for Epsom salt is [tex]{ \blue{ \underline{ \tt{MgS O_{4} .7H_{2}O}}}}[/tex]

The empirical formula of the compound (metal bromide) formed when 20.90 grams of chromium is heated in the presence of excess bromine is CrBr₂

First, we shall determine the mass of bromine in the compound. This is illustrated below

Mass of bromine = (Mass of compound) - (Mass of chromium)

Mass of bromine = 85.14 - 20.90

Mass of bromine = 64.24 grams

Haven obtained the mass of the bromine, we shall determine the empirical formula of the metal bromide. This is shown below:

Divide by their molar mass

Cr = 20.90 / 52 = 0.4

Br = 64.24 / 79.9 = 0.8

Divide by the smallest

Cr = 0.4 / 0.4 = 1

Br = 0.8 / 0.4 = 2

Thus, from the above calculation, the empirical formula of the metal bromide is CrBr₂

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The reaction as is shown in option E has its enthalpy of reaction not the same as the enthalpy of formation of the product.

The enthalpy of formation is the heat that is evolved or absorbed when a substances is formed from its constituents under standard conditions. We know also that the enthalpy of the reaction is the heat that is evolved or absorbed in the reaction.

In a case where we know that the compound which is obtained in the product is not formed from the substances that are in their standard states, it the follows that the enthalpy of the reaction would not be the same as the enthalpy of formation of the product.

This is so because, the enthalpy of formation of the standard substances is always zero. Given the fact that both Xenon atom and the fluorine gas are pure substances in standard state, their enthalpies of formation are zero thus the enthalpy of formation of the xenon fluoride is the same as the enthalpy of the reaction. Option E.

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11.29 grams of strontium-ninety had been gift withinside the unique rock pattern in 1933. Strontium- ninety decays to yttrium-ninety, which in flip decays to solid zirconium.

The isotopes of strontium and yttrium emit beta debris as they decay. The launch of radiation throughout this decay manner reasons situation approximately the protection of strontium and all different radioactive substances. Sr-ninety may be inhaled, however ingestion in meals and water is the best fitness situation. Once withinside the body, Sr-ninety acts like calcium and is effectively included into bones and teeth, wherein it may purpose cancers of the bone, bone marrow, and smooth tissues across the bone.

Strontium has a half-existence of 28.8 years. Therefore,

1989 - 1933 = 56years.

fifty six / 28.eight = 1.94 half-lives

Thus, the amount of the radioisotope closing will double for every half-existence elapsed. transferring backwards in time. Therefore, transferring backwards in time through 1.94 times half-lives, the amount closing will double through 1.94 times.

Thus, the quantity closing in 1933 is 3.0 × (1.ninety four)² = 11.29 grams.

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AnswerNegative Partial Charge on: Se, O, O. O-Te is most polar.

Explanation:

O, Se, and Te are all in the same group on the periodic table, which makes this question easier because there is a periodic trend for electronegativity going up and down groups. The more you go down the periodic table, the more shielding affect there is where the electrons closest to the nucleus of an atom block the protons’ positive charge from reaching other electrons. So, O is the most electronegative here, followed by Se, and then Te. So in a bond with O and either of the other two, O will always have a partial negative charge. Se in a bond with Te will also have a partial negative charge, but the difference in electronegativity is biggest between O and Te, and so that is the most polar bond.

According to the electronic configuration and difference in electronegativity, the most polar bond is O-Te.

Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.

Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.

Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state and hence are said to be stable.

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Answer:

C

Explanation:

Water vapor is Earth's most abundant greenhouse gas. It's responsible for about half of Earth's greenhouse effect — the process that occurs when gases in Earth's atmosphere trap the Sun's heat.

Hope it made sense :)

Answer:

2

Explanation:

Because both atoms ate from the same element, iron

The energy of the eight shell of the hydrogen atom is obtained 0.2 eV

We know that from the Bohr model, the electrons that are in an atom can be arranged in energy levels. The energy levels of the atom are arranged in such a way that the levels that are lowest in energy are found nearer to the nucleus and the energy of the shells continue to increase outwards.

Thus, the energy of the eight shell would be much more than the energy of the first shell. Let us consider the formula;

E = - 13.6Z^2/n^2

Where;

Z = atomic number of the atom

n = The shell where the electron is

Thus;

E = - 13.6 * 1/8^2

E = -0.2eV

Thus the energy that an electron that we can find in the shall that has n = 8 would have the energy that is equivalent to 0.2eV.

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