Question

Write the balanced chemical equation for the following and identify the type of reaction in each case .





a) Potassium bromide (aq) + Barium iodine (aq) - Potassium iodine (aq) + Barium bromide (s)


b) Zinc carbonate (s) - Zinc oxide (s) + Carbon dioxide (g)


c) Hydrogen (g) + Chlorine (g) - Hydrogen chloride (g)

d) Magnesium (s) + Hydrochloric acid (aq) - Magnesium chloride (aq) + Hydrogen (g)​

Answer 1

Answer:

Answers:-

a) Potassium bromide (aq) + Barium iodine (aq) → Potassium iodine (aq) + Barium bromide (s)

⟾ $KBr\: (aq)\: +\: BaI_{2}\: (aq) \:→\: KI\: (aq)\: +\: BaBr_{2} \:(s)$

Balancing the equation:-

⟾ $2KBr \:(aq) \:+ \:BaI_{2}\: (aq) \:→ \:2KI\: (aq) \:+ \:BaBr_{2}\:(s)$

Type:- Double Displacement Reaction

━━━━━━━━━━━━━━━━━━

b) Zinc carbonate (s) → Zinc oxide (s) + Carbon dioxide (g)

⟾ $ZnCO_{3}\:(s) \:→\: ZnO \:(s)\: +\: CO_{2}\:(g)$

Balancing the equation:-

⟾ $ZnCO_{3}\:(s)\: → ZnO\: (s) \:+\: CO_{2}\:(g)$

Type:- Thermal Decomposition Reaction

━━━━━━━━━━━━━━━━━━

c) Hydrogen (g) + Chlorine (g) → Hydrogen chloride (g)

⟾ $H_{2}\:(g)\:+\:Cl_{2}\:(g)\: → \:HCl\:(aq)$

Balancing the equation:-

⟾ $H_{2}\:(g)\:+\:Cl_{2}\:(g) \:→\: 2HCl\:(aq)$

Type:- Combination Reaction

━━━━━━━━━━━━━━━━━━

d) Magnesium (s) + Hydrochloric acid (aq) → Magnesium chloride (aq) + Hydrogen (g)

⟾ $Mg\:(s)\:+\:HCl(aq)\: →\: MgCl_{2}\:(aq)\:+\:H_{2}\:(g)$

Balancing the equation:-

⟾ $Mg\:(s)\:+\:2HCl\:(aq) \:→ \:MgCl_{2}\:(aq)\:+\:H_{2}\:(g)$

Type:- Single Displacement Reaction

━━━━━━━━━━━━━━━━━━

Answer 2

Answer:

Answers:-

a) Potassium bromide (aq) + Barium iodine (aq) → Potassium iodine (aq) + Barium bromide (s)

⟾ KBr\: (aq)\: +\: BaI_{2}\: (aq) \:→\: KI\: (aq)\: +\: BaBr_{2} \:(s)KBr(aq)+BaI

2

(aq)→KI(aq)+BaBr

2

(s)

Balancing the equation:-

⟾ 2KBr \:(aq) \:+ \:BaI_{2}\: (aq) \:→ \:2KI\: (aq) \:+ \:BaBr_{2}\:(s)2KBr(aq)+BaI

2

(aq)→2KI(aq)+BaBr

2

(s)

Type:- Double Displacement Reaction

━━━━━━━━━━━━━━━━━━

b) Zinc carbonate (s) → Zinc oxide (s) + Carbon dioxide (g)

⟾ ZnCO_{3}\:(s) \:→\: ZnO \:(s)\: +\: CO_{2}\:(g)ZnCO

3

(s)→ZnO(s)+CO

2

(g)

Balancing the equation:-

⟾ ZnCO_{3}\:(s)\: → ZnO\: (s) \:+\: CO_{2}\:(g)ZnCO

3

(s)→ZnO(s)+CO

2

(g)

Type:- Thermal Decomposition Reaction

━━━━━━━━━━━━━━━━━━

c) Hydrogen (g) + Chlorine (g) → Hydrogen chloride (g)

⟾ H_{2}\:(g)\:+\:Cl_{2}\:(g)\: → \:HCl\:(aq)H

2

(g)+Cl

2

(g)→HCl(aq)

Balancing the equation:-

⟾ H_{2}\:(g)\:+\:Cl_{2}\:(g) \:→\: 2HCl\:(aq)H

2

(g)+Cl

2

(g)→2HCl(aq)

Type:- Combination Reaction

━━━━━━━━━━━━━━━━━━

d) Magnesium (s) + Hydrochloric acid (aq) → Magnesium chloride (aq) + Hydrogen (g)

⟾ Mg\:(s)\:+\:HCl(aq)\: →\: MgCl_{2}\:(aq)\:+\:H_{2}\:(g)Mg(s)+HCl(aq)→MgCl

2

(aq)+H

2

(g)

Balancing the equation:-

⟾ Mg\:(s)\:+\:2HCl\:(aq) \:→ \:MgCl_{2}\:(aq)\:+\:H_{2}\:(g)Mg(s)+2HCl(aq)→MgCl

2

(aq)+H

2

(g)

Type:- Single Displacement Reaction

━━━━━━━━━━━━━━━━━━