For the reaction A₂ + B₂ → 2AB, Ea(fwd) = 125KJ/mol and Ea(rev) = 85KJ/mol. Assuming the reaction occurs in one step,(c) sketch a possible transition state.

Explanation:

Solids have a definite shape and volume. Liquids have a definite volume, but take the shape of the container. Gases have no definite shape or volume.

The kinetic theory of matter (particle theory) says that all matter consists of many, very small particles which are constantly moving or in a continual state of motion.

Answer:

b? im pretty sure

Explanation:

Answer:

Molecular formula = C₆H₄Cl₂

Explanation:

Given data:

Percentage of hydrogen = 2.7%

Percentage of carbon = 49%

Percentage of chlorine = 48.2%

Molar mass of compound = 150 g/mol

Molecular formula = ?

Solution:

Number of gram atoms of H = 2.7 / 1.01 = 2.67

Number of gram atoms of Cl = 48.2 / 16 = 1.36

Number of gram atoms of C = 49 / 12 = 4.08

Atomic ratio:

            C                      :           H             :           Cl

           4.08/ 1.36         :     2.67/1.36       :       1.36/1.36

            3                      :        2                 :        1

C : H : Cl = 3 : 2 : 1

Empirical formula is C₃H₂Cl.

Molecular formula:

Molecular formula = n (empirical formula)

n = molar mass of compound / empirical formula mass

Empirical formula mass = 12×3 + 1.01 ×2 + 35.5 = 73.52 g/mol

n = 150 / 73.52

n = 2

Molecular formula = n (empirical formula)

Molecular formula = 2 (C₃H₂Cl)

Molecular formula = C₆H₄Cl₂

If my lab partner is interested in studying how industrial chemicals pollute the environment, I would recommend him to take specialization in the field of environmental chemistry.

Environmental chemistry is a branch of chemistry of utmost importance as it deals with the various impacts that are caused upon the environment by chemicals  released from industries and day to day activities.

I would recommend my lab partner to take courses of analytical chemistry, physical, inorganic and organic chemistry as well in order to investigate in depths of environmental chemistry. All these fields are needed to be studied in order to study about the occurrence of environmental pollution by industrial chemicals.

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Answer:

Interest Groups- collection of people who share some common interest or attitude and seek to influence government for specific ends. Usually work within the framework of government and employ tactics such as lobbying to achieve their goals. One person's special interest is another's public interest.

Explanation:

The measurement of the length of the cube should be to two siginificant figures.

We know that the term significant figures has to do with the number of figures that we can be able to give a place value in a number. This is the number of figures to which we can be able to attach a mathematical significance and this definition that I have made here is quite very important as we are looking at the concept of the significant figures that have been raised here.

We are told here that; three students used different rulers to measure the length of the sides of a cube. The values that the students were able to obtain from the measurement is; 2.20 cm , 2.215 cm and 2.2 cm. This is clearly a replicate measurement and the number of the significant figures would be the lowest that occurs in the values that we have here.

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Yes, the observation that intermolecular forces cause pressure to be lower than predicted is observed in Model 3.

The graph in Model 3 shows that the actual pressure is lower than the predicted pressure, indicating that intermolecular forces are at play. This phenomenon can be explained by the fact that the gas molecules are attracted to each other, which reduces their average kinetic energy and therefore reduces the pressure.

The more tightly the molecules are held together, the greater the reduction in pressure will be, as can be seen in the graph of Model 3. In summary, intermolecular forces do cause pressure to be lower than predicted, and this is observed in Model 3.

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Answer:

Chemical Bonds Glycogen

Explanation:

Since all species appear on both side of the ionic equation, there was no reaction.

Same ions present in both side of complete ionic equation are omitted to write net ionic equation. These ions are called the spectator ions.

first step - write down molecular equation as follows:

Al(C2H3O2)3(aq) + 3LiNO3 (aq) --> 3Li(C2H3O2)(aq) + Al(NO3)2(aq)

second step - write complete ionic equation;

Al3+ (aq) + 3(C2H3O2)^- (aq) + 3Li^+(aq) + 3N03^-(aq) -----> 3Li^+(aq) + 3(C2H3O2)^-(aq) + Al^3+(aq) + 3N03^-(aq)

You can see that all ions that appeared on the left hand side of the reaction equation also appeared on the right hand side of the reaction equation, thus thet are omitted. Hence there was no reaction.

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To have 0.49 mol of C7H14, you would need to measure out approximately 48.04 grams of C7H14.

To calculate the mass of C7H14 needed to have 0.49 mol, we need to use the molar mass of C7H14.

The molar mass of C7H14 can be calculated by summing the atomic masses of carbon (C) and hydrogen (H) in the molecule:

C: 7 atoms * atomic mass of carbon = 7 * 12.01 g/mol = 84.07 g/mol

H: 14 atoms * atomic mass of hydrogen = 14 * 1.01 g/mol = 14.14 g/mol

Total molar mass of C7H14 = 84.07 g/mol + 14.14 g/mol = 98.21 g/mol

Now we can calculate the mass of C7H14 needed:

Mass = moles * molar mass

Mass = 0.49 mol * 98.21 g/mol ≈ 48.04 g

Therefore, to have 0.49 mol of C7H14, you would need to measure out approximately 48.04 grams of C7H14.

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Answer:

among us

Explanation:

red among us

tama

The partial pressure inside a gas mixture shall consist of the notional pressure of that constituent gas if the whole quantity of its starting material alone was occupied at the same temperature. The partial gas pressure is a measure of thermodynamic action in the particles of a gas, and the calculation can be defined as follows:

Given:

\(\to \bold{ P_T=3.50 \ atm}\\\\\to \bold{P_B=1.25 \ atm}\\\\\)

To find:

partial pressure=?

Solution:

Using formula: \(\bold{P_T=P_A+P_B}\\\\\)

                   \(\to \bold{3.50=P_A+1.25}\\\\\to \bold{P_A=3.50-1.25}\\\\\to \bold{P_A=2.25}\\\\\)

As we know that pressure is not negative and as \(\bold{P_T}\) is total pressure so, it has a large value, and\(\bold{ P_A , P_B}\) is partial.

Therefore, the final answer is "Option C".

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True. Volatile solvents that act as CNS depressants, such as inhalants, can be found in a wide variety of household products.

Volatile solvents are chemicals that vaporize at room temperature and can be inhaled to produce intoxicating effects. These solvents are commonly found in various household products, including cleaning agents, paint thinners, adhesives, aerosol sprays, and certain fuels. Examples of volatile solvents include toluene, xylene, benzene, and trichloroethylene.

When these volatile solvents are inhaled, they enter the bloodstream through the lungs and quickly reach the central nervous system (CNS). In the CNS, they act as depressants, slowing down the activity of the brain and nerve cells. The effects can include dizziness, disorientation, euphoria, hallucinations, and in severe cases, loss of consciousness or even death.

It is important to note that inhalant abuse, particularly among adolescents and young adults, poses serious health risks and can lead to addiction, organ damage, cognitive impairment, and other long-term consequences. Proper usage and storage of household products containing volatile solvents are crucial to prevent unintended inhalation and protect individuals from the harmful effects associated with their misuse.

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Answer:

like if someone finna do that for 5 points

Answer:

Chemical Reaction

Explanation:

A chemical reaction is a process in which substances undergo a chemical change to form a different substance. In this reaction, the hydrogen peroxide is catalyzed by the yeast to release the oxygen molecules.

Please mark as brainlist.

Answer:

30

Explanation:

Measure the water rised in the beaker which is 180 and subtract 150 and you get 30

Answer:

There are 0.311 moles of  gas in the tank

Explanation:

Complete question

A 4.00g sample of gas is found to exert a pressure of 1.71 atm when confined in 3.60L container at a temperature of 241 K. Find the number of moles of the gas

Solution

As we know

\(PV = nRT\)

where P is the pressure of the gas in atm

V is the volume in liters

n is the number of moles

R is the gas constant = 0.08206 L·atm/K·mol

and T is the temperature in Kelvin

Substituting the given values in above equation, we get -

\(1.71 * 3.60 = n * 0.08206 * 241\\n = 0.311\)

There are 0.311 moles of  gas in the tank

Give a handwritten explanation and response. Estimate the expected melting temperature of cadmium (Cd), vanadium, and other elements based on the patterns you have found.

What does melting point mean?

The temperature at which a pure substance's solid and liquid states can coexist in equilibrium is known as the melting point. A solid's temperature will rise when heat is added to it until its melting point is reached.

How do melting and boiling points differ?

The melting point

The temperature that a quality of output into a liquid under normal air pressure is known as the melting point. The temperature at which a liquid's vapor pressure equals the pressure around it, turning the liquid into vapor (and vice versa).

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If Benjamin Franklin had decided to call the charge on the amber rod positive, nothing would have changed only that we would have a different convention for identifying charges.

We know that electricity has to do with the flow of  current, there are fundamentally two kinds of charge, a positive and a negative charge. We know that the kind of charge that a material carries is arbitrary.

As we can see here, it was Benjamin Franklin in 1750 that defined the charge on the glass rod and the charge on the amber rod as negative. If Benjamin Franklin had decided to call the charge on the amber rod positive, nothing would have changed only that we would have a different convention for identifying charges.

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Answer:0

Explanation: zero because it is the most stable form of oxygen in its standard state

Answer:

1.583 moles

Explanation:

Rounded Atomic Mass of Au = 197 grams

\(\frac{312}{197} =1.5837, 1.584\)

"To insure proper operation of an oxygen cylinder regulator, make sure no oil residue is present" is true because oil residue can compromise the functioning of an oxygen cylinder regulator.

Explanation: It is true that to ensure proper operation of an oxygen cylinder regulator, it is important to make sure that no oil residue is present. Oxygen cylinders contain highly concentrated oxygen that can react violently with oil or grease, leading to combustion or explosions. Oil residue can contaminate the regulator and pose a significant safety risk.

Therefore, it is crucial to keep oxygen cylinders and their regulators free from any oil or grease to maintain safe and proper functioning.

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Answer:

Volumen = 65.199 metro cúbico

Explanation:

Tal como lo conocemos

P1V1 = P2 V2

Aquí

P1 = 1,9 atmósferas

V1 = (pi) * r ^ 2 * h

Sustituyendo los valores dados, obtenemos

V1 = 3.14 * 2.8 * 2.8 * 4.6 = 113.241 metros cúbicos

V2 = por determinar

P2 = 3.3 atmósferas

Sustituyendo los valores dados y derivados en la fórmula principal, obtenemos -

1.9 atm * 113.241 metros cúbicos = 3.3 atm * V2

V2 = 1.9 atm * 113.241 metros cúbicos / 3.3 atm

V2 = 65.199 metro cúbico

Explanation:

I think its boron because boron is no. 5 on the periodic table, and it has a two energy levels with three valence electrons

Boron is the element which has three valence electrons and  two energy levels.

Electrons present in an atom revolve in different orbits which are stationary states and are also called as energy levels. The energy levels are numbered as integers which are also called as principal quantum numbers.

Energy of the stationary state is given as E= -R

1/n² where R

is the Rydberg's constant. When an electron is excited, and it moves from lower to higher energy levels there is absorption of energy, while when it moves from higher energy level to lower energy level it radiates or gives out energy in the form of radiation.

They can also be defined as the distances between electron and nucleus of an atom . Electrons present in K energy level have least energy .Energy level diagrams are studied to understand nature of bonding , placement of electrons in orbits and and elemental behavior under certain conditions.

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Answer:

a.) 10.5 Grams -> 0.0105 Kilograms

b.) 1.37 Kilometer -> 1370 meters

c.) 3.54 µgrams -> 0.00000354 grams

d.) 3.5 mol -> 3500000 µmol

e.) 1.2 Li -> 1200 MLi

f.) 358 Cm³ -> 0.0358 m³

g.) 548.6 Ml -> 548.6 Cm³

Explanation:

a.) 1000 Grams = 1 kilograms

b.) 1 kilometer = 1000 meters

c.) 1 µg= 0.000001 g

d.) 1 mol = 1000000 µmol

e.) 1 Li = 1000 MLi

f.) 1 cm³ = 0.0001 m³

g.) 1 MLi = 1 Cm³

*Did your teacher not give you a list of the different measurements or even a elements chart??? the element charts has the conversions on the back.***

The balanced chemical equation for the reaction between solid calcium bicarbonate and aqueous acetic acid to form aqueous calcium acetate, water, and gaseous carbon dioxide is:

Ca(HCO3)2(s) + 2CH3COOH(aq) → Ca(CH3COO)2(aq) + H2O(l) + 2CO2(g)

The reaction involves the reaction of calcium bicarbonate (Ca(HCO3)2) with acetic acid (CH3COOH). The chemical formula for calcium bicarbonate can also be written as calcium hydrogen carbonate.

First, let's write the unbalanced equation based on the reactants and products:

Ca(HCO3)2 + CH3COOH → Ca(CH3COO)2 + H2O + CO2

To balance the equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation.

Starting with the carbon atoms, there are two carbon atoms on the left side (in CH3COOH), but only one on the right side (in Ca(CH3COO)2).

To balance this, we need to place a coefficient of 2 in front of Ca(CH3COO)2:

Ca(HCO3)2 + 2CH3COOH → 2Ca(CH3COO)2 + H2O + CO2

Next, let's balance the hydrogen atoms. There are six hydrogen atoms on the left side (in 2CH3COOH), but only four on the right side (in H2O and 2Ca(CH3COO)2).

To balance this, we need to place a coefficient of 4 in front of H2O:

Ca(HCO3)2 + 2CH3COOH → 2Ca(CH3COO)2 + 4H2O + CO2

Finally, let's balance the oxygen atoms. There are eight oxygen atoms on the left side (in Ca(HCO3)2 and 2CH3COOH), but only six on the right side (in 2Ca(CH3COO)2).

To balance this, we need to place a coefficient of 2 in front of Ca(HCO3)2:

2Ca(HCO3)2 + 2CH3COOH → 2Ca(CH3COO)2 + 4H2O + CO2

Now the equation is balanced, and the coefficients indicate the stoichiometric ratio of the reactants and products.

The balanced chemical equation for the reaction between solid calcium bicarbonate and aqueous acetic acid to form aqueous calcium acetate, water, and gaseous carbon dioxide is:

2Ca(HCO3)2(s) + 2CH3COOH(aq) → 2Ca(CH3COO)2(aq) + 4H2O(l) + CO2(g),

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Answer:

Zinc is more active than copper.

Explanation:

Now, the reason is that Zinc loses its valence electrons more easily than copper to take part in a reaction.

A hypothesis, plan and design an experiment to determine whether substance A is an oxidizing agent may be substance A receives electrons in redox reactions, which is determined by observing the level of ATP in response to the presence of this substance across the inner mitochondrial membrane.

An oxidizing agent can be defined as any substance that receives electrons in an oxide reduction reaction, which can be verified as a step of cellular respiration to produce ATP.

Therefore, with this data, we can see that an oxidizing agent receives electrons and this can be determined in cellular respiration due to the production of ATP.

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