Answer the following IV — task. Science State Board, Class 8.

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Balance the following chemical equation.

a. $Na$ + $O_2$ → $Na_2O$

Balanced chemical equation is

b. $Ca$ + $N_2$ → $Ca_3N_2$

Balanced chemical equation is

c. $N_2$ + $H_2$ → $NH_3$

Balanced chemical equation is

d. $CaCO_3$ + $HCl$ → $CaCl_2$ + $CO_2$ + $H_2O$

Balanced chemical equation is

e. $Pb(NO_3){_2}$ → $PbO$ + $NO_2$ + $O_2$

Balanced chemical equation is

Did you find an error?

13. Answer the following IV