Question

which of the following is an example of a chemical change?
a. dissolving sugar
b. boiling water
c. baking a cake
d. cutting a log

Explanation:

Chemical changes result in new substances with different chemical properties. Dissolving sugar is a physical change as sugar molecules disperse in water without forming new substances. Boiling water is a physical change as it changes water from liquid to gas without altering its chemical composition. Cutting a log is a physical change as it only changes the physical shape and size of the wood. Baking a cake involves chemical reactions like the reaction of baking powder with moisture and heat to produce carbon - dioxide gas, and proteins in eggs denaturing, forming new substances.

Answer:

C. Baking a cake