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11/09/2021 7:23 pm
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What is the action of water on (a) sodium (b) magnesium, and (c) aluminium? Write equations of the chemical reactions involved.
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11/09/2021 7:29 pm
(a) Sodium reacts vigorously with cold water forming sodium hydroxide and hydrogen gas.
2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g) + Heat
(b) Magnesium reacts with hot water to form magnesium hydroxide and hydrogen.
Mg(s) + 2H2O(l) → Mg(OH)2(aq) + H2(g)
(c) Aluminium reacts with steam to form aluminium oxide and hydrogen gas.
2Al(s) + 3H2O(g) → Al2O3(s) + 3H2(g)