The main energy products currently being obtained from the ocean floor are oil and _____.

Answer: 9.13g NO

Explanation:

First, I list what I know, which is the values of STP, the volume, the constant R, and the molar mass of NO; I also include what I'm looking for, which is n, the number of moles of NO.

STP = 273.15K, 1 atm

P = 1 atm

V = 6.82L

R = 0.0821 L*atm/mol*K

T = 273.15K

n = ?

NO mass: 30.01 g/mol

Then, I use the ideal gas law, PV = nRT, to find the number of moles of NO:

(1 atm)(6.82 L) = n()(273.15K)
(1 atm)(6.82 L) = n()
(1 atm)(6.82 L) / () = n       => divided both sides by 22.4L*atm/mol
n = 0.304 mol NO

Then, I use the molar mass of NO, 30.01 g/mol, to convert from mol NO to g NO:

g NO = 0.304 mol NO()
         = 9.13 g NO

I hope this helps! :)

Answer:

A) Solution

Explanation:

Final answer:

A solution is not a pure substance, while elements, molecules, and compounds are examples of pure substances. The correct option is A.

Explanation:

The correct answer is a. solution. A solution is a mixture of two or more substances, so it is not a pure substance. Examples of solutions include saltwater and sugar water. On the other hand, elements, molecules, and compounds are all examples of pure substances. An element is a substance that cannot be broken down into simpler substances, such as gold or oxygen. A molecule is a combination of two or more atoms held together by chemical bonds, like water (H₂O) or carbon dioxide (CO₂). Lastly, a compound is a substance made up of two or more different elements chemically bonded together, like table salt (NaCl) or water (H₂O).

Learn more about pure substances here:

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Answer is C - equal volumes and the same number of molecules.

Explanation;

Let's assume that CO and CO₂ are ideal gases. Then we can use ideal gas law, PV = nRT

Where, P is the pressure of the gas (Pa), V is the volume of the gas (m³), n is the number of moles of gas (mol), R is the universal gas constant ( 8.314 J mol⁻¹ K⁻¹) and T is temperature in Kelvin.

The temperature and the pressure of the both gases are same. Volume is also same as 1.0 L. R is a constant. So according to the formula, both gases have same number of moles. According to the Avogadro's constant, 1 mole has 6.022 x 10²³ particles.

number of molecules = Avogadro's constant x number of moles.

Hence, under the same conditions both gases have same number of molecules.

1) Answer is: D. both B and C.

Activated complex  is collection of intermediate structures in a chemical reaction that forms while bonds are breaking and new bonds are forming.

The transition state is the configuration at the peak of the diagram while the activated complex can refer to any point near the maximum.

Activation energy is the minimum energy colliding particles must have in order to react.

2) Answer is: B. chemical equilibrium.

Balanced chemical reaction: A + B ⇄ C + D.

1) In a chemical reaction, chemical equilibrium is the state in which both reactants ( and BA) and products (C and D) are present in concentrations which have no further tendency to change with time.  

2) At equilibrium, both the forward and reverse reactions are still occurring.

3) Reaction rates of the forward and backward reactions are equal and there are no changes in the concentrations of the reactants and products.

3) Answer is: C. inhibitor.

Inhibitor is a substance that decreases the rate of a chemical reaction.

Inhibitor can reduce the effectiveness of a catalyst in a catalysed reaction.

Catalysis is the increase in the rate of a chemical reaction due to the participation of an additional substance called a catalyst.  

Reactions occur faster with a catalyst because they require less activation energy.  

4) Answer is: A. Fe.

Balanced reaction: Fe + 2HCl → FeCl₂ + H₂.

Oxidation reaction: Fe⁰ → Fe⁺² + 2e⁻.

Reduction reaction: 2H⁺ + 2e⁻ → H₂⁰.

Reducing agent is an element or compound that loses an electron to another chemical species in a redox chemical reaction and they have been oxidized.

Iron (Fe) change oxidation number from 0 to +2 (lose electrons), iron is oxidized (reducing agent).

Answer :

1) The correct option is, (D) both B and C.

2) The correct option is, (D) both A and B

3) The correct option is, (C) inhibitor.

4) The correct option is, (A) Fe

Explanation :

For part 1 :

Activated complex or transition state : It is the state where the bonds are loosened and new lose bonds are formed between them. It is unstable state and immediately dissociates to form the stable products. The arrangement of atoms takes place at the peak of the activation energy barrier.

For part 2 :

The balanced chemical reaction is,

Chemical equilibrium : It is defined as a state where the rate of forward reaction is equal to the rate of backward reaction. That means there is no net change in the concentration of the reactants and the products.

Reversibility : It is defined as, in a reversible reaction when reactant A and B react to form products C and D and in the reverse reaction, C and D react to form A and B. That means process is reversible.

For part 3 :

Inhibitor : It is the substance that decreases the rate of the chemical reaction. It can reduce the effectiveness of the catalyst in a catalyzed reaction.

Or we can say that it is a substance that interferes with the action of a catalyst.

For part 4 :

The balanced redox reaction is :

The half oxidation-reduction reactions are:

Oxidation reaction :

Reduction reaction :

From this we conclude that the 'Fe' is the reducing agent that loses an electron to another chemical species in a redox chemical reaction and itself oxidized.

Hence, the reducing agent is, Fe