Question 2 (ii)

Write equation for the reaction of calcium and potassium with water.

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Solution

Calcium reacts with water to form calcium hydroxide and hydrogen gas alongwith heat. The reaction occurs as follows:

$Ca (s) + 2 H_{2} O (l) \to {Ca(OH)}_{2} (aq) + H_{2} (g) + Heat$

Potassium reacts with water to form potassium hydroxide and hydrogen gas alongwith heat. The reaction occurs as follows:

$2 K (s) + 2 H_{2} O (l) \to 2 KOH (aq) + H_{2} (g) + Heat$

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Similar questions

Write equations for the reactions of

(i) iron with steam

(ii) calcium and potassium with water

(a)
Write equations for the reactions of
(i) iron with steam.

(b)
(ii) calcium and potassium with water.

Write a balanced equation for the reactions that occur when:
(i) Iron react with steam.
(ii) Calcium and potassium react with water.

Write equation for the reactions of:
1. Iron with steam.
2. Calcium with water.
3. Potassium with water. [3 MARKS]

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