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Question

Give me any 10 Examples for the following reactions

1Chemical combination

2 Chemical composition

3 Chemical displacement

4 Chemical double displacement or exchange

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Solution

Chemical combination reaction:
1) 2Mg + O2 2MgO
2) 2H2 + O2 → 2H2O
3) C +O2 CO2
4) H2 + Cl2 → 2HCl
5) 2Na + Cl2 NaCl
6)Fe + S FeS
7) CaO + H2O Ca(OH)2
8) NH3 + HCl NH4Cl
9) 2CO + O2 → 2CO2
10) 2SO2 + O2 →2 SO3



Double displacement:
1) AgNO3 + NaCl AgCl + NaNO3
2) BaCl2 + Na2SO4 BaSO4 + 2NaCl
3) CuSO4 + H2S CuS + H2SO4
4) AlCl3 + 3NH4OH Al(OH)3 + 3NH4Cl
5) BaCl2 + CuSO4 BaSO4 + CuCl2
6) NaOH + HCl → NaCl + H2O
7) Pb(NO3)2 + KI PbI2 + 2KNO3
8) CuSO4 + 2NaOH Cu(OH)2 + Na2SO4
9) CoCl2 + Na2CO3 CoCO3 + 2NaCl
10) Pb(CH3COO)2 + 2HCl PbCl2 +2CH3COOH


Displacement reaction
1) CuSO4 + Zn ZnSO4 + Cu
2) CuSO4 + Fe FeSO4 + Cu
3) CuSO4 + Mg MgSO4 +Cu
4) 2Na + 2H2O 2NaOH+ H2
5) CuO + Mg MgO + Cu
6) CuCl2 + Pb PbCl2 + Cu
7) Fe2O3 + 2Al2Fe + Al2O3
8) Fe + 2HCl FeCl2 + H2
9) Cl2 + 2KI 2KCl + I2
10) Mg +2HCl MgCl2 + H2


Decomposition reaction
1) CaCO3 CaO + CO2
2) 2Pb(NO3)2 2PbO + 4NO2 + O2
3) 2FeSO4 Fe2O3 + SO2 + SO3
4) 2KClO3 2KCl +3O2
5) H2C2O4.H2O H2C2O4 + H2O
6) 2AgCl 2Ag + Cl2 (Photodecomposition reaction)
7) 2AgBr
2Ag + Br2 (photodecomposition reaction)
8) 2H2O2 →2H2O + O2( in presence of light)

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