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Select the best answer for the question.

In the chemical equation [tex] Zn + 2HCl \rightarrow ZnCl_2 + H_2 [/tex], the reactants are:

A. zinc chlorate and water.

B. zinc chloride and hydrogen.

C. zinc and hydrogen carbonate.

D. zinc and hydrochloric acid.

Sagot :

GinnyAnswer
To determine the reactants in the chemical equation [tex]\( \text{Zn} + 2 \text{HCl} \rightarrow \text{ZnCl} + \text{H} \)[/tex], let's carefully identify each component involved in the reaction.

1. Identify the given chemical equation:
[tex]\[ \text{Zn} + 2 \text{HCl} \rightarrow \text{ZnCl} + \text{H} \][/tex]

2. Identify the substances present on the left side of the arrow (reactants):
- The equation shows reactants as [tex]\( \text{Zn} \)[/tex] and [tex]\( 2 \text{HCl} \)[/tex].
- [tex]\( \text{Zn} \)[/tex] stands for zinc.
- [tex]\( \text{HCl} \)[/tex] is hydrochloric acid.

3. Identify each reactant:
- [tex]\( \text{Zn} \)[/tex] (zinc) is a metallic element.
- [tex]\( \text{HCl} \)[/tex] (hydrochloric acid) is a common acid.

4. Restate the reactants in a clear form:
- The reactants in this chemical equation are zinc and hydrochloric acid.

Thus, the best answer for the question is:

D. zinc and hydrochloric acid.
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