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18.Which of the following is an example of a chemical change?Select one:a. Evaporation of gasoline.b. Burning of wood.c. Melting of paraffin wax.d. Freezing of water.

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Answer

b. Burning of wood

Step-by-step explanation

Chemical changes occur when a substance combines with another to form a new substance.

Physical changes are changes affecting the form of a chemical substance, but not its chemical composition.

Therefore;

a. Evaporation of gasoline is a physical change.

b. Burning of wood is a chemical change

c. Melting of paraffin wax is a physical change.

d. Freezing of water is a physical change.

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