Question

when hydrogen is passed over copper oxide,copper and steam are formed. write a balanced equation for this reaction and state which of the chemicals are

(i)elements

(ii)compounds

(iii)reactants

(iv)products

(v)metals

(vi)non-metals

Answer 1

when hydroxide is passed over copper ........

answer- metal

Answer 2

Answer:

CuO(s)+H2(g) --> Cu(s)+H2O(g)

Explanation:

it is a kind of redox /displacement reaction as H2 displaces CuO to form Cu and H2O. also hydrogen gas reduces the compound. here H2 is reducing agent and substance reduced is CuO.

element will be metal

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