3 years ago

Question 4

1 answer:

6 0

Answer:

$Ca +H_2O \rightarrow + H_2 + CaO$

Explanation:

Hello,

In this case, considering the given two reactions, when we add them, we obtain:

$Ca + 2HCl +CaCl_2 +H_2O \rightarrow CaCl_2 + H_2 + CaO+2HCl$

Thus, we can simplify both hydrochloric acid and calcium chloride as they are both sides to obtain:

$Ca +H_2O \rightarrow H_2 + CaO$

Best regards.

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