define double displacement and oxidation
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A double displacement reaction is a type of chemical reaction where two compounds react, and positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products. For example, Na2S + 2HCl → 2NaCl + H2S
Oxidation : 1.Oxidation is the gain of oxygen.
2.Oxidation is the loss of hydrogen.
3. Oxidation is loss of electrons
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