Question

Question 4

What is the sum of these two reactions? Write your answer below, but don't worry about formatting with subscripts-Do write chemical formulas with
proper atomic symbols, though (e.g., write CuCl2, not CUCL2).
(1) Ca + 2HCl - CaCl2 + H2
(2) CaCl2+H2O = CaO + 2HCl

Answer 1

`Ca +H_2O \rightarrow + H_2 + CaO`

Step-by-step 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.