Question

this passage describes a chemical reaction. read the passage. then, answer the question below.
while orbiting earth, a satellite controls its position using small rockets on its sides. these rockets are often fueled by hydrazine (n₂h₄), which can be made using the olin raschig process. in this process, sodium hypochlorite (naclo) and ammonia (nh₃) combine to form water (h₂o), sodium chloride (nacl), and hydrazine.
in the chemical reaction described in the passage, which of the following are reactants? select all that apply.
ammonia (nh₃)
sodium hypochlorite (naclo)
water (h₂o)
hydrazine (n₂h₄)

Explanation:

Step1: Recall reactant definition

Reactants are substances that participate in a chemical - reaction and are present at the start.

Step2: Identify from the passage

The passage states that sodium hypochlorite ($NaClO$) and ammonia ($NH_3$) combine to form products. So they are reactants. Water ($H_2O$) and hydrazine ($N_2H_4$) are products of the reaction.

Answer:

A. ammonia ($NH_3$)
B. sodium hypochlorite ($NaClO$)