Multiple choice-- please help! Study the chemical reaction.

A ⟶ B + C

This reaction is second order in A.

What is the rate law for this reaction?

Rate = K [B][C]^2
Rate = K [A]^2

The rate law for the reaction : r=k.[A]²

Given

Reaction

A ⟶ B + C

Required

The rate law

Solution

The rate law is a chemical equation that shows the relationship between reaction rate and the concentration / pressure of the reactants

For the second-order reaction it can be:

1. the square of the concentration of one reactant.

2. the product of the concentrations of two reactants.

And the reaction should be(for second order) :

2A ⟶ B + C

Thus, for reaction above (reactant consumption rate) :

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.