Question

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

toothpaste contains several chemicals that keep your teeth and gums healthy. one of the most common chemicals in toothpaste is sodium fluoride (naf), which helps prevent cavities. sodium fluoride and water (h₂o) can be made by combining hydrofluoric acid (hf) with sodium hydroxide (naoh). manufacturers then mix the sodium fluoride with other substances, including mint flavoring, to make toothpaste.

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

hydrofluoric acid (hf)
water (h₂o)
sodium hydroxide (naoh)
sodium fluoride (naf)

Explanation:

In a chemical reaction, reactants are the substances combined, and products are the substances formed. The passage states "Sodium fluoride (NaF) and water (H₂O) can be made by combining hydrofluoric acid (HF) with sodium hydroxide (NaOH)". So HF and NaOH are reactants, while NaF and H₂O are products.

Answer:

B. water ($\ce{H_{2}O}$), D. sodium fluoride ($\ce{NaF}$)