Question

Dr. West mixes zinc (Zn) and hydrochloric acid (HCl) together in his laboratory. The two chemicals react to form hydrogen gas (H2) and zinc chloride (ZnCl2).
Which of the following are products in the chemical reaction described above?
A.
hydrogen gas and zinc chloride
B.
zinc and hydrochloric acid
C.
hydrochloric acid and zinc chloride
D.
zinc and hydrogen gas

Answer 1

Answer: A.  hydrogen gas and zinc chloride

Explanation: Reactants of a chemical reaction is defined as the substances which take part in a chemical reaction and undergoes a chemical change. Reactants are written on left side of the arrow.

Products are defined as the substance which are formed at the end of the chemical reaction.Products are written on the right side of the arrow.

For the reaction of zinc (Zn) and hydrochloric acid (HCl), the balanced chemical equation is represented as :

$Zn+2HCl\rightarrow ZnCl_2+H_2$

Here, $ZnCl_2$ and $H_2$ are products.

Answer 2

Answer :

A : hydrogen gas and zinc chloride