Types of Chemical Reactions Worksheet
There
are 5 major types of reactions simplified by the following equations:
- Synthesis/Combination A + B à AB
- Decomposition AB à A + B
- Combustion ? + O2 à ?
- Single Replacement X + AB à XB + A or
Y + AB à AY + B
- Double Replacement XY + AB à XB + AY
Classify each of
the following reactions:
1. Zn +
Cl2 à
ZnCl2 combination
2. 2 H2S + 3 O2 à 2 SO2 + 2
H2O combustion
3. Cu + 2 AgNO3 à
Cu(NO3)2 + 2 Ag single replacement
4. Mg(OH)2 à
MgO + H2O decomposition
5. CaCl2 +
Na2SO4 à CaSO4 + 2
NaCl double replacement
6. CaO + H2O à Ca(OH)2 combination
7. Pb + 4 HCl à PbCl4 + 2 H2 single replacement
8. Li2O + CO2 à LiCO3 combination
9. SO2 + H2O à H2SO3 combination
10. MgCO3 à
MgO + CO2 decomposition
Predict the
product and Classify each of the following reactions when only the reactants
are given:
1. Mg + N2
à
Mg3N2 combination
2. C2H6
+ O2 à CO2
+ H2O combustion
3. Zn + CuCl2 àZnCl2
+ Cu single replacement
4. Ca + H2O àCa(OH)2 + H2 single
replacement
5. AgNO3 +
NaI àAgI + NaNO3 double
replacement
6. Fe(NO3)3 +
LiOH à
Fe (OH)3 + LiNO3 double replacement
7. MgCO3 àMgO + CO2 decomposition
8. SO2 + H2O àH2SO3 combination
9. HI àH2 + I2 decomposition
10. H2SO4 +
LiOH à
Li2SO4 + H2O double replacement
Convert these following into
symbol equations
- Some
grey magnesium ribbon was added to colourless dilute hydrochloric acid.
The metal dissolves producing magnesium chloride and produces some
hydrogen gas.
Mg(s)
+ HCl(aq) à MgCl2(aq)
+ H2(g)
- Some
zinc metal is added to copper(11) sulphate solution. The zinc becomes
coated with copper and colourless zinc sulphate solution is produced.
Zn(s)
+ CuSO4(aq) à ZnSO4(aq)
+ Cu(s)
- Some
colourless hydrogen gas is mixed with colourless oxygen gas. The mixture
is sparked and it explodes producing steam which condenses to liquid
water.
H2(g) +
O2(g) à H2O(l)
- Magnesium
ribbon is burnt in carbon dioxide gas. It burns splattering as it goes.
Black carbon is produced and some magnesium oxide solid.
Convert these word equations below into
symbol symbol equations. Then classify the following reactions, represented by
word equations, as synthesis/combination, decomposition , single replacement, double replacement, combustion
1) sulphur + oxygen à sulphur dioxide ……………...
S + O2 à SO2 combination
2) sodium + chlorine à sodium chloride ……………...
Na + Cl2 à NaCl combination
3) magnesium + oxygen à magnesium oxide ……………...
Mg + O2
à MgO combination/combustion
4) magnesium + hydrochloric acid -----------> magnesium chloride + hydrogen
……………...
HEAT
Mg +
HCl à MgCl2 +
H2 single replacement
5) calcium carbonate ----------->.calcium oxide + carbon dioxide ……………...
HEAT
CaCO3 à CaO + CO2 decomposition
6) mercury oxide --------------> mercury + oxygen ……………...
HEAT
Hg2O à Hg +
O2 decomposition
7) sodium nitrate à sodium nitrite +
oxygen ……………...
NaNO3 à NaNO2 + O2 decomposition
8) aluminium + iron III oxide -------------->aluminium oxide +
iron ……………...
HEAT
Al +
Fe2O3 à Al2O3
+ Fe single replacement
9) cobalt II chloride crystals --------------->.anhydrous cobalt chloride + water vapour
HEAT ……………...
CoCl2. n H2O à CoCl2 +
H2O decompostion
10) nitrogen + hydrogen ---------------> ammonia (hydrogen
nitride) ……………...
iron catalyst
N2 +
H2 à NH3 combination
