How many grams of KCl are produced if 25g of KCIO3 decompose?
2KCIO3
2KCI
+
302

15 g

Explanation:

The reaction that takes place is:

First we convert 25 g of KCIO₃ to moles, using its molar mass:

Then we convert KCIO₃ moles to KCl moles, using the stoichiometric coefficients:

Finally we convert KCl moles to grams, using the molar mass of KCl:

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i'm pretty sure its b i might be wrong though!