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Chemistry

Write word equations for the following skeletal equations:

(a) KClO3 ⟶ KCl + O2

(b) Zn + HCl ⟶ ZnCl2 + H2

(c) FeCl2 + Cl2 ⟶ FeCl3

(d) CO + O2 ⟶ CO2

(e) Ca + O2 ⟶ CaO

(f) Na + O2 ⟶ Na2O

(g) NaOH + H2SO4 ⟶ Na2SO4 + H2O

(h) AgBr ⟶ Ag + Br2

(i) KNO3 ⟶ KNO2 + O2

(j) FeS + 2HCl ⟶ FeCl2 + H2S

(k) Na2CO3 + 2HCl ⟶ 2NaCl + H2O + CO2

(l) 2H2 + O2 ⟶ 2H2O

(m) Na2O + H2O ⟶ 2NaOH

Chemical Equation

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Answer

(a) Potassium chlorate ⟶ Potassium chloride + Oxygen (gas)

(b) Zinc + Hydrochloric acid (dil.) ⟶ Zinc chloride + Hydrogen (gas)

(c) Ferrous chloride + Chlorine ⟶ Ferric chloride

(d) Carbon monoxide + Oxygen ⟶ Carbon dioxide

(e) Calcium + Oxygen ⟶ Calcium oxide

(f) Sodium + Oxygen ⟶ Sodium oxide

(g) Sodium hydroxide + Sulphuric acid ⟶ Sodium sulphate + Water

(h) Silver bromide ⟶ Silver + Bromine

(i) Potassium nitrate ⟶ Potassium nitrite + Oxygen (gas)

(j) Iron sulphide + Hydrochloric acid (dil.) ⟶ Iron chloride + Hydrogen sulphide (gas)

(k) Sodium carbonate + Hydrochloric acid (dil.) ⟶ Sodium chloride + Water + Carbon dioxide (gas)

(l) Hydrogen + Oxygen ⟶ Water

(m) Sodium oxide + Water ⟶ Sodium hydroxide

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