3. which of these is a chemical change?\na water evaporating\nb dissolving salt in water\nc ice cubes…

Brief Explanations:

A chemical change results in a new substance being formed. Water evaporating, dissolving salt in water, and ice - cubes melting are physical changes as no new substances are created. Baking a cake involves chemical reactions between ingredients like flour, eggs, and baking powder to form a new substance (the cake), so it is a chemical change.

Answer:

d. baking a cake