Balance the equation: Fe + O 2 → Fe 2 O 3

Iron undergoes oxidation to form ferric oxide. An equation is said to balanced if there are an equal number of atoms of each element on both products side and reactants side. First balance the number of oxygen atoms and then balance the number of iron atoms. The balanced chemical equation is- 4 Fe s + 3 O 2 g → 2 Fe 2 O 3 s .

Balance the equation: Fe + O 2 → Fe 2 O 3

Iron undergoes oxidation to form ferric oxide. An equation is said to balanced if there are an equal number of atoms of each element on both products side and reactants side. First balance the number of oxygen atoms and then balance the number of iron atoms. The balanced chemical equation is- 4 Fe s + 3 O 2 g → 2 Fe 2 O 3 s .

Balance the equation: FeO + O 2 → Fe 2 O 3

Ferrous oxide reacts with oxygen to form ferric oxide. An equation is said to balanced if there are an equal number of atoms of each element on both products side and reactants side. First balance the number of oxygen atoms and then balance the number of iron atoms. The balanced chemical equation is- 4 FeO s + O 2 g → 2 Fe 2 O 3 s

Balance the equation: P + HNO 3 → H 3 PO 4 + NO 2 + H 2 O

Phosphorous reacts with nitric acid to form phosphoric acid and nitrogen dioxide. An equation is said to balanced if there are an equal number of atoms of each element on both products side and reactants side. Equal the number of atoms of nitrogen, hydrogen and oxygen atoms. The balanced chemical equation is- P s + 5 HNO 3 aq → H 3 PO 4 aq + 5 NO 2 g + H 2 O

Balance the equation: NaCl + MnO 2 + H 2 SO 4 → NaHSO 4 + MnSO 4 + H 2 O + Cl 2

Sodium chloride reacts with manganese dioxide under acidic condition to give sodium bisulphate and manganese sulphate. An equation is said to balanced if there are an equal number of atoms of each element on both products side and reactants side. Balance the number of oxygen, hydrogen and sulphur atoms. 2 NaCl s + 3 H 2 SO 4 aq + MnO 2 s → 2 NaHSO 4 aq + MnSO 4 aq + 2 H 2 O + Cl 2 g

Balance the equation: NH 3 + Cl 2 → NCl 3 + HCl

When chlorine gas is passed over ammonia gas, nitrogen trichloride is formed. An equation is said to balanced if there are an equal number of atoms of each element on both products side and reactants side. First balance the number of hydrogen atoms. There are three hydrogen atoms on the reactants side and one on the products side. Multiply hydrochloric acid compound by 3 . Then, balance the number of chlorine atoms. The balanced chemical equation is- NH 3 g + 3 Cl 2 g → NCl 3 l + 3 HCl aq