Chemical reactions produces new substances and may be a synthesis, decomposition, combustion, replacement, or neutralization reaction.
What are chemical reactions?
Chemical reactions are changes which occurs in substances producing changes in the chemical properties of the substance.
The chemical reactions described are as follows:
- Synthesis: at least two reactants and one product
- Decomposition: at least one reactant and two products
- Combustion: oxygen is one of the reactants and large amount of energy is released
- Replacement: at least one or more atoms replaces a part of a compound
- Neutralization: the products are always salt and water
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