Question

BALANCE THE GIVEN CHEMICAL EQUATIONS

Answer 1

Balancing the equations

1) $\sf Cl_2 + NaBr \rightarrow NaCl + Br_2$

$\implies \sf Cl_2 + 2NaBr \rightarrow 2NaCl + Br_2$

2) $\sf Ag_2O \rightarrow Ag + O_2$

$\implies \sf 2Ag_2O \rightarrow 4Ag + O_2$

3) $\sf Mg + HCl \rightarrow H_2 + MgCl_2$

$\sf \implies Mg + 2HCl \rightarrow H_2 + MgCl_2$

4) $\sf H_2 + O_2 \rightarrow H_2O$

$\sf \implies 2H_2 + O_2 \rightarrow 2H_2O$

5) $\sf Cl_2 + NaBr \rightarrow NaCl + Br_2$

$\implies \sf Cl_2 + 2NaBr \rightarrow 2NaCl + Br_2$

$\underline{ \green{ \bf{some \: important \: points : }}}$

• A equation that shows the how the elements and compounds combine together to form some other new substance in a chemical reaction is called a chemical equation .

• A balanced chemical equation is the one that has equal number of atoms of each element on both sides of the equation .

• A common chemical equation can be solved by hit and trial method . However an ionic equation can be solved by ion exchange method or by half equation method .

• In hit and trial method , it is advised to balance the atom of Hydrogen and Oxygen at last for convenience and making our process easy .