Question

1. you add a scoop of sugar into your glass of hot tea. later, after you drink the tea your body digests that sugar as a source of energy. are either of these chemical changes? explain your answer.

Explanation:

When you add sugar to hot tea, it dissolves which is a physical change as the sugar molecules disperse in the tea but no new substances are formed. When the body digests sugar, it undergoes a chemical change. Enzymes in the body break down the sugar (a carbohydrate) into simpler substances like glucose through processes such as glycolysis, and energy is released. This involves the formation of new chemical substances.

Answer:

Adding sugar to tea is a physical change; digesting sugar is a chemical change.