Question

give an example of decomposition reaction and addition reaction

Answer 1

decomposition:-

CaCO3 ------------> CaO + CO2

addition:-

2Mg + 2O2 --------------–> 2MgO

Answer 2

1)H2CO3∆=H2O + CO2
hydrogen carbonate in presence of water and carbon dioxide which is decomposition reaction


H2+I2= HI


hydrogen + iodine gives hydrogen iodide which is addition reaction


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