In certain fireworks, potassium nitrate breaks down into potassium oxide, nitrogen, and oxygen. this is an example of a reaction. the opposite process is a reaction.
options for both of the blanks are
a) combustion
b) decomposition
c) replacement
or d) synthesis

Answer : The correct option for 1st blank is Decomposition and for 2nd blank is Synthesis.

Explanation :

When potassium nitrate breaks down into potassium oxide, nitrogen, and oxygen that means one bigger molecule decomposes into two or more smaller molecules. So, this an example of a decomposition reaction.

And in the opposite process that means potassium oxide, nitrogen, and oxygen are combined to form potassium nitrate means two or more small reactant combine to form a single large product. So, this an example of synthesis reaction.

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