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when one atom replaces another in a reaction- general formula: AB + C → AC + Bex. 2NaCl + F₂ → 2NaF + Cl₂- only occurs if the single element is higher up on reference table J

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1. when one atom replaces another in a reaction
- general formula: AB + C → AC + B
ex. 2NaCl + F₂ → 2NaF + Cl₂
- only occurs if the single element is higher up on reference table J





 
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