Question

this passage describes a chemical reaction. read the passage. then, answer the question below.

your body breaks down food by making stomach acid, which is composed mostly of hydrochloric acid (hcl). if your body makes too much stomach acid, you may suffer from an upset stomach. antacids like sodium bicarbonate (nahco₃) can relieve an upset stomach by combining with hydrochloric acid. this combination forms sodium chloride (nacl), water (h₂o), and carbon dioxide (co₂), reducing the amount of acid in the stomach.

in the chemical reaction described in the passage, which of the following are products? select all that apply.

• hydrochloric acid (hcl)
• sodium chloride (nacl)
• water (h₂o)
• carbon dioxide (co₂)

Explanation:

To determine the products of the chemical reaction, we analyze the passage: Antacids (like $\ce{NaHCO_{3}}$) combine with hydrochloric acid ($\ce{HCl}$) (reactants) to form sodium chloride ($\ce{NaCl}$), water ($\ce{H_{2}O}$), and carbon dioxide ($\ce{CO_{2}}$) (products). Hydrochloric acid is a reactant, not a product. So the products are sodium chloride, water, and carbon dioxide.

Answer:

B. sodium chloride ($\ce{NaCl}$)
C. water ($\ce{H_{2}O}$)
D. carbon dioxide ($\ce{CO_{2}}$)