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6 May, 09:09

How does the number of reactants in a double displacement reaction compare with the number of products

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  1. 6 May, 09:44
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    Answer;

    Two reactants and two products.

    Explanation; A double-replacement reaction occurs when parts of two ionic compounds are exchanged, making two new compounds. A characteristic of a double-replacement equation is that there are two compounds as reactants and two different compounds as products. A precipitate forms in a double-replacement reaction when the cations from one of the reactants combine with the anions from the other reactant to form an insoluble ionic compound. An example of a double displacement reaction is;

    CuCl2 (aq) + 2 AgNO3 (aq) → Cu (NO3) 2 (aq) + 2 AgCl (s)

    A precipitate is formed, that is why the other name of double replacement reaction is precipitation reaction.
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