Pls help me First person to Ans correctly will get branliest

2 answers:

Virty [35]3 years ago

6 0

Answer:

I think we should heat for it to decompose

Explanation:

when decomposed KCO3 becomes potassium carbonate water and co2

5 0

Answer:

do it by yourself 6637373

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matrenka [14]

Answer:

=62.7 KJ

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julia-pushkina [17]

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