a metal which react explosively with cold water is a) magnesium b) aluminium c) sodium choose the correct answer
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Answered by
14
Answer:
(a) Sodium reacts vigorously with cold water forming sodium hydroxide and hydrogen gas.
Reaction: 2Na(s)+2H
2
O(l)→2NaOH(aq)+H
2
(g)+heat
(b) Magnesium reacts with hot water to from magnesium hydroxide and hydrogen.
Reaction: Mg(s)+2H
2
O(l)→Mg(OH)
2
(aq)+H
2
(g)
(c) Aluminium reacts with steam to form aluminium oxide and hydrogen gas.
Reaction: 2Al(s)+3H
2
O(g)→Al
2
O
3
(s)+3H
2
(g)
Answered by
2
Answer:
c) sodium..............
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