Question

(a) Write balanced chemical equations for the following word equations : [2] (i) Calcium + Nitrogen → Calcium nitride (ii) Copper + Nitric acid → Copper(II)nitrate + nitric oxide + water​

Answer 1

Answer:

(i) 3Ca + N2 = Ca3N2

(ii) Cu + 2HNO3 = Cu(NO3)2 + H2 [ The reaction of a metal and acid can never produce water, it will always give out a salt and hydrogen gas ]

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