Question

When calcium (Ca) is mixed with hydrochloric acid (HCl), a single replacement reaction occurs. What will be the product or products of the reaction? a.CaCl + H2
b.CaCl2
c.Ca + HCl
d.CaCl2 + H2

Answer 1

The answer is C.) Ca + HCl

Answer 2

Answer:

The correct answer is option d: CaCl2 + H2

Explanation:

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When the Ca + HCl is joined there is a replacement reaction in which Ca takes the place of H and to balance loads, we need two atoms of Cl.

The resulting reaction is CaCl2 + H2

The complete reaction is

Ca + 2HCl ---> CaCl2 + H2

We conclude that the correct answer is option d: CaCl2 + H2