Question

Find the errors in the following chemical equations and balance them:

(i) 2C + O2 2CO2

(ii) 4H2 + O2 2H2O

(iii) 2Mg + O2 2MgO2

(iv) 3CuCO3 3CuO + CO2

(v) Mg + H2Cl MgCl2 + H2​

Answer 1

look at the attachment for answer

sorry I didn't get the 4th

Answer 2

All are in balance.

hope this answer is helpful!!