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

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Solution

Balanced equation for the reaction taken place :

$H_{2} (g) + C u O (s) ⟶ C u (s) + H_{2} O (g)$

Answers :

( i ) elements – $H_{2} a n d C u$

( ii ) compounds – $H_{2} O a n d C u O$

( iii ) reactants – $H_{2} a n d C u O$

( iv) products – $H_{2} O a n d C u$

( v ) metal - Cu

(vi ) non metal – $H_{2}$

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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

Balanced equation for the reaction taken place : H2(g)+CuO(s)⟶Cu(s)+H2O(g) Answers : ( i ) elements – H2 and Cu ( ii ) compounds – H2O and CuO ( iii ) reactants – H2 and CuO ( iv) products – H2O and Cu ( v ) metal - Cu (vi ) non metal – H2

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