Chemical Reactions

Balance these chemical equations.

(a) Na₂SO₄ (s) + C (s) --> Na₂S (s) + CO₂(g)

(b) Ag₂SO₄ (aq) + BaI₂ (aq) --> BaSO₄ (s) + AgI (s)

(c) HCl (g) + O₂ (g) --> H₂O (l) + Cl₂ (g)

(d) CH₄ (g) + O₂ (g) --> CO₂ (g) + H₂O (l)

(e) Cl₂ (g) + P₄ (s) --> PCl₃ (l)

(f) sodium metal reacts with liquid water produces aqueous sodium hydroxide, NaOH, and hydrogen gas.

(g) Zinc metal dissolves in hydrochloric acid solution, HCl, produces zinc (II) chloride solution and hydrogen gas.

(h) Write the balanced equation for the combustion of benzene, C₆H₆.

(a)	Na₂SO₄ (s) + C (s) --> Na₂S (s) + CO₂(g)
(b)	Ag₂SO₄ (aq) + BaI₂ (aq) --> BaSO₄ (s) + AgI (s)
(c)	HCl (g) + O₂ (g) --> H₂O (l) + Cl₂ (g)
(d)	CH₄ (g) + O₂ (g) --> CO₂ (g) + H₂O (l)
(e)	Cl₂ (g) + P₄ (s) --> PCl₃ (l)
(f)	sodium metal reacts with liquid water produces aqueous sodium hydroxide, NaOH, and hydrogen gas.
(g)	Zinc metal dissolves in hydrochloric acid solution, HCl, produces zinc (II) chloride solution and hydrogen gas.
(h)	Write the balanced equation for the combustion of benzene, C₆H₆.

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Chemistry Department
British Columbia Institute of Technology, Burnaby, B.C. Canada.
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