Question

in the reaction a + b → c + d, what are the reactants?
a. just b
b. c and d
c. a and c
d. a and b

Explanation:

In a chemical reaction of the form A + B → C + D, the substances on the left - hand side of the arrow are the reactants. Here, A and B are on the left - hand side and are the starting substances that react.

Answer:

D. A and B