Sarah is making a strawberry banana smoothie. She combines one banana, five strawberries, and a cup and a half of milk in a
blender to make her smoothie. In the blender, the fruit is cut up into tiny pieces and then turned into a liquid. No chemical change
occurs. Which statement best describes the substances in the blender?

c. electrical charges of ionic bonds.

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.

gasoline is a mixture. it contains several different kinds of compounds that can be present in a variety of ratios.