CHEMISTRY REVISION ON CHEMICAL EQUATIONS, HALF EQUATIONS AND IONIC EQUATIONS

1. 1
SET 1 – POPULAR EQUATIONS IN CHEMISTRY
Name ……………………………………………class……………………….date…………………..
Popular chemical equations . Fill in the table below
Reactions equations
1 Magnesium reacts with oxygen
2 Copper oxide reacts with hydrogen
3 Lithium reacts with water
4 Sodium reacts with chlorine
5 Chlorine reacts with water
6 Iodine reacts with sodium hydroxide
7 Ionization of hydrochloric acid in
water
8 Reaction of nitric acid with zinc
9 Reaction of sulphuric acid with
copper(II)oxide
10 Reaction of hydrochloric acid with
marble chips
11 Manufacture of sulphuric acid
Stage 1
Stage2
Stage 3
Stage 4
12 Reaction to produce ammonia in
Haber Process
13 Reaction of sodium thiosulphate and
sulphuric acid
14 Decomposition of hydrogen peroxide
in the presence of catalyst
Reactions equations

2. 2
15 Combustion of methane in excess
oxygen
16 Combustion of ethane in excess
oxygen
17 Combustion of ethanol in excess
oxygen
18 Reaction of ethene with hydrogen
19 Reaction of ethene with steam
20 Reaction of ethene with bromine
21 Reaction of ethene with hydrogen
chloride
22 Dehydration of ethanol
23 Oxidation of ethanol to form
ethanoic acid
24 Esterification of ethanol with
propanoic acid
25 Displacement of copper from
copper(II) sulphate by zinc
26 Displacement of iodine from
potassium iodide by chlorine
27 Rusting of iron
28 Heating magnesium in the presence
of potassium manganate(VII) powder
29 Precipitation reaction of silver
chloride from its ions in solution
30 Word equation to prepare soap from
saponification process
31 General formula of soap
32 General formula of detergent

3. 3
POPULAR half –equations in chemistry
Reactions Half equations at anode Half equations at cathode
1 Electrolysis of molten lead(II)
iodide
2 Electrolysis of 0.001 moldm-3
hydrochloric acid
3 Electrolysis of 1.0 moldm-3
hydrochloric acid
4 Electrolysis of 1.0 moldm-3
copper(II) sulphate solution
using carbon electrodes
5 Electrolysis of 1.0 moldm-3
copper(II) sulphate solution
using copper electrodes
Half equations at Negative Half equations at Positive
electrode electrode
1 Reactions in Daniel cell
(sketch diagram first)
REDOX REACTIONS Half equations for Half equations for
Oxidation Reduction
1 Reaction of iron(II) sulphate
with chlorine
Overall equation
2 Reaction of iron(III) chloride
with zinc
Overall equation
3 Reaction of potassium iodide
with acidified potassium
manganate (VII) solution
Overall equation

4. 4
4 Reaction of potassium bromide
with acidified potassium
dichromate(VI) solution
Overall equation
IONIC EQUATIONS
Reactions Ionic equation
1 Hydrochloric acid and magnesium
2 Hydrochloric acid and zinc
3 Sulphuric acid and marble chips
4 Precipitation reaction of silver chloride salt
5 Formation of barium sulphate salt
6 Displacement of copper from its ion by zinc
7 Reaction of sulphuric acid and sodium
hydroxide
8 Reaction of nitric acid and potassium
hydroxide
END OF CHEMISTRY SKILL SET 1- POPULAR EQUATIONS