AS Inorganic equation (group 7)

Question 1

reaction of sodium chloride with concentrated sulphuric acid

Answer 1

NaCl(s) + H2SO4 (l)&raquo_space;> NaHSO4 (s) + HCl(g)

Question 2

HF equation

Answer 2

F- + H+&raquo_space;> HF

Question 3

Chlorine with water equation (reversible reaction)

Answer 3

Cl2 + H2O ⇌ HClO + HCl

Question 4

Chlorine with water (in sunlight) - doubles

Answer 4

2Cl2 + 2H20-> 4HCl (acidic) + 02

Question 5

Reaction of chlorine with cold dilute NaOH (start with Cl2 + 2NaOH…)

Answer 5

Cl2 + 2 NaOH > NaCl + NaClO + H2O

Question 6

Differentiate between Na2CO3 and NaCl equations

Answer 6

Na2CO3 + 2HNO3 → 2NaNO3 + CO2 + H2O
- AgNO3 + NaCl → AgCl + NaNO3

Question 7

AgCl ionic equation

Answer 7

Ag+ (aq) + Cl - (aq)&raquo_space; AgCl(s)

Question 8

AgBr ionic equation

Answer 8

Ag+ (aq) + Br- (aq)&raquo_space; AgBr(s)

Question 9

AgI ionic equation

Answer 9

Ag+ (aq) + I- (aq)&raquo_space; AgI(s)

Question 10

Silver chloride dissolves in dilute ammonia

Answer 10

AgCl(s) + 2NH3 (aq)&raquo_space;[Ag(NH3 )2 ]+ (aq) + Cl - (aq)

Question 11

Silver bromide dissolves in concentrated ammonia to form a complex ion

Answer 11

AgBr(s) + 2NH3 (aq)&raquo_space;[Ag(NH3 )2 ]+ (aq) + Br - (aq)

Question 12

redox reaction between solid sodium bromide and concentrated
sulfuric acid equation

Answer 12

2HBr + H2SO4&raquo_space;> Br2 (g) + SO2 (g) +2 H2O(l)

Question 13

aqueous chlorine + sodium bromide solution equation

Answer 13

Cl2 + 2 Br – → 2 Cl – + Br2 (yellow solution)

Question 14

Chlorine with water redox equations

Answer 14

oxidation = Cl2 + 2H2O → 2HClO + 2H+ 2e–
reduction = Cl2 + 2H+ 2e–→ 2HCl