AB → A + B is to decomposition as A + B ↔ AB is to
A) exchange.
B) reversible.
C) combustion.
D) replacement.
E) metabolism.

Question

Quizplus · Accepted Answer

The double-headed arrow indicates a reversible reaction, where the reactants (A and B) can combine to form the product (AB) and the product (AB) can also break down into the reactants (A and B). Reversible reactions are opposite of decomposition reactions, which only involve the breakdown of a compound into simpler substances. Therefore, the best choice is B, reversible.

AB → a + B Is to Decomposition as a