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“We must trust to nothing but facts: These are presented to us by Nature, and cannot deceive. We ought, in every instance, to submit our reasoning to the test of experiment, and never to search for truth but by the natural road of experiment and observation.” ― Antoine Lavoisier, Elements of Chemistry

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Friday, 27 February 2015

Model Paper 3 for IGCSE Chemistry

Model paper 3.
click here to download

Thursday, 26 February 2015

Types of Chemical Reaction Worksheet


TOPIC : TYPES OF REACTION

Classify each of the following reactions:

1. Zn   +    Cl2  à ZnCl2
2. 2 H2S +   3 O2 à   2 SO2  +    2 H2O
3. Cu + 2 AgNO3 à Cu(NO3)2 + 2 Ag
4. Mg(OH)2 à MgO + H2O
5. CaCl2    +    Na2SO4 à CaSO4 + 2 NaCl
6. CaO +    H2O à Ca(OH)2
7. Pb  + 4 HCl à PbCl4 + 2 H2
8. Li2O +   CO2 à LiCO3
9. SO2 +   H2O à H2SO3
10. MgCO3 à MgO + CO2
Predict the products and classify each of the following reactions when only the reactants are given: 

1. Mg  +  N2 à
2. C2H6 +  O2 à
3. Zn  + CuCl2  à
4. Ca  + H2à
5. AgNO3    +    NaI à
6. Fe(NO3)3    +    LiOH à
7. MgCO3 à
8. SO2 +    H2O à
9. HI à

10. H2SO4    +    LiOH à