
(a)
Interpretation:
The balanced chemical equation for the given
Concept Introduction:
The chemical reaction must be balanced such that it agrees with the law of mass conservation. A balanced chemical equation arises when the number of atoms or ions of reactant side are equals to the number of atom or ions of product side.
(a)

Answer to Problem 4RE
The balance chemical equation is:
Explanation of Solution
When the reaction of calcium metal (Ca) react with water (H2O) to gives the calcium hydroxide (Ca(HO)2) in aqueous solution and hydrogen (H2) gas.
The unbalance reaction is
The above reaction can be balanced by giving coefficient 2 to H2O.
Thus, the balanced chemical equation will be:
(b)
Interpretation:
The balanced chemical equation for the given chemical reaction of calcium bicarbonate and hydrochloric acid needs to be determined.
Concept Introduction:
The chemical reaction must be balanced such that it agrees with the law of mass conservation. A balanced chemical equation arises when the number of atoms or ions of reactant side are equals to the number of atom or ions of product side.
(b)

Answer to Problem 4RE
Explanation of Solution
The reaction of calcium bicarbonate
The unbalanced reaction is:
The above reaction can be balanced by giving coefficient 2 to HCl, 2 to H2O and 2 to CO2.
Thus, the balanced chemical reaction will be:
Chapter U4 Solutions
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