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8 September, 14:50

hich of the following is best described as a decomposition reaction? HCl + NaHCO3 → H2O + CO2 + NaCl 2Na + Cl2 → 2NaCl 2HgO → 2Hg + O2 AgNO3 + NaCl → AgCl + NaNO3

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  1. 8 September, 17:49
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    The answer to your question is: c

    Explanation:

    A descomposition reaction is a chemical reaction in which the only one reactant yields two or more products.

    a) HCl + NaHCO3 → H2O + CO2 + NaCl

    This is not a descomposition reaction because there are two reactants not one, this option is incorrect.

    b) 2Na + Cl2 → 2NaCl

    THis option is also incorrect because there are two reactants in descompositin reaction there is only one reactant.

    c) 2HgO → 2Hg + O2

    There are only one reactant that yields 2 products, this is a descomposition reaction.

    d) AgNO3 + NaCl → AgCl + NaNO3

    THis is not a descomposition reaction because there are two reactants.
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