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Materials: Metals and Non-Metals
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17/04/2021 9:12 am
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Name one metal which will fit each of the following descriptions. Also write the equation of the reaction.
(a) A metal which floats on water, reacts with it and forms an alkali.
(b) A metal that displaces silver from silver nitrate solution.
(c) A metal which is used for galvanising iron.
(d) A metal that reacts with oxygen without burning.
(e) A metal that bums in oxygen with a bright light.
1 Answer
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17/04/2021 9:18 am
(a) Sodium
2Na + 2H2O → 2NaOH + H2
(b) Cu + 2AgNO3 → Cu(NO3)2 + 2Ag
(c) Zinc
(d) Aluminium
(e) 2Mg + O2 + heat → 2MgO