Question

What is happening when the reactants BEGIN to react? Select the TWO correct statements. [A] + [B] decrease slowly [A] + [B] decrease rapidly [A] + [B] remain constant [CD] decrease slowly [CD] increases slowly [CD] increases rapidly

Answer 1

Answer:

[A] + [B] decrease rapidly.

[CD] increases rapidly.

Explanation:

• For the reaction:

A + B → CD,

The reaction proceeds that A reacts with B and their concentration decreases to produce CD that its concentration increases with time.

At the beginning of the reaction; the concentration of A + B decreases rapidly and the concentration of CD increases rapidly.

Kindly, see the attached image.

• So, the right choice is:

[A] + [B] decrease rapidly.

[CD] increases rapidly.

Answer 2

Answer:

So I took the test with this problem and can tell you that the other guy figured it out so thank him but I wanted to let you know he did it right

Explanation:

What is happening when the reactants BEGIN to react? There are two correct statements.

[A] + [B] decrease slowly.

[A] + [B] decrease rapidly.  This Is Right

[A] + [B] remain constant.

[CD] decreases slowly.

[CD] increases slowly.

[CD] increases rapidly. This is too