Question

balancing of equation:-
(1)MnO2+HCl--->MnCl2+Cl+H2O.
(2)C2H6+O2--->CO2+H2O.
(3)KMnO4+H2SO4--->K2SO4+MnSO4+HH2O+O2.
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Answer 1

Answer:

Explanation:

Balance chemical equation is an equation in which number of atoms of individual element are present in same number on both sides that is reactant side and product side.

By stiochiometery, 1 moles of  manganese dioxide reacts with 4 mol of hydrochloric acid to give 1 mol manganese chloride and 2 mol of water and 1 mol of chloride.

Mno2+4Hcl=Mncl2+2H2o+cl2

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C2H4+3o2=2Co2+2H20

By stiochiometery, 1 moles of ethene reacts with 3 mol of oxygen to give 2 mol carbon dioxide and 2 mol of water.