BALANCING CHEMICAL EQUATIONS

$$\ldots N_2+\ldots H_2\ \rightarrow\ \ldots NH_3$$

$$KClO_3\ \rightarrow\ KCl\ +\ O_2$$

$$\ldots NaCl + \ldots F_2 \rightarrow \ldots NaF +\ldots Cl_2$$

$$\ldots H_2\ +\ldots O_2\ \rightarrow\ \ldots H_2O$$

$$\ldots CH_4\ +\ \ldots O_2\ \rightarrow\ \ldots CO_2\ +\ \ldots H_2O$$  

Balance the chemical equation: $$C_3H_8 + O_2 \rightarrow CO_2 + H_2O$$

Balance the chemical equation: $$P + O_2 \rightarrow P_2O_5$$

$$\ldots S_8 + \ldots O_2 \rightarrow \ldots SO_3$$

$$\ldots Na + \ldots H_2O \rightarrow \ldots NaOH + \ldots H_2$$

$$\ldots HNO_3\ +\ \ldots NaHCO_3\ \rightarrow\ \ldots NaNO_3\ +\ \ldots H_2O\ +\ \ldots CO_2$$