differentiate between chemical combination and decomposition. give examples.
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differentiate between chemical combination and decomposition. give examples.
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Example hydrogen+oxygen=water
Decomposition reaction are those in which a single material decomposes to form one or more product. It can take place when energy is provided in the form of heat, light or electricity. It's the opposite of combination reaction.
Example, water decomposes in presence of electricity to form hydrogen and oxygen.
N2 + O2 gives out 2NO
When a single substance decomposes to form two or more substances is called decomposition reaction. For e.g.,
CaCO3 gives out CaO + CO2
These two reactions are just opposite to each other.