Question

after dinner, hector demonstrated to his parents a process that he learned in science class that day. he poured a small amount of sugar into a cup of water and then stirred it until the sugar dissolved. which process did hector demonstrate? how substances dissolve in water to produce a pure substance how to separate components of a solution how two pure substances can be combined to form a solution how dissolving a substance in water is an example of a chemical reaction

Explanation:

Hector combined sugar and water to make a solution. He didn't separate components. A solution of sugar - water is a mixture, not a pure substance. Dissolving sugar in water is a physical change, not a chemical reaction.

Answer:

C. How two pure substances can be combined to form a solution