Which of the following requires a chemical change? A. Melting chocolate on a graham cracker
B. Toasting a marshmallow over a fire
C. Letting the fizz escape from a soda
D. Blending mustard and ketchup on a bun

C

Explanation:

When you let the fizz out of soda you are making it no longer sodo so a b and d are not correct

answer

fusion: the energy source of stars. the energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. when the core is hot enough, nuclear fusion commences. fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.

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