Question

Whats is a balanced symbol equation for the reaction of calcium with cold water?

Answer 1

Answer:

Calcium atom reacts with 2 water molecules to take away a hydroxide ion from each to form calcium hydroxide, while the two remaining hydrogen ions form a diatomic hydrogen gas.

Explanation:

Calcium is a metal and a typical reaction of a metal with water will be as follows:

Metal + Water → Metal Hydroxide + Hydrogen Gas

Thus, the chemical reaction for calcium and water will be:

[Word Equation]

Calcium + Water → Calcium hydroxide + Hydrogen Gas

[Chemical Equation]

Ca (s) + 2(H2O) (l) → Ca(OH)2(aq) + H2 (g)

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Answer 2

Answer:

• Ca+2H₂O⇒Ca(OH)₂+H₂