classify each example as a physical change or a chemical change.\nphysical change chemical change\ncrushing…

classify each example as a physical change or a chemical change.\nphysical change chemical change\ncrushing an aluminum can\nrecycling used aluminum cans to make new aluminum cans\naluminum combining with oxygen to form aluminum oxide\nwater boiling

classify each example as a physical change or a chemical change.\nphysical change chemical change\ncrushing an aluminum can\nrecycling used aluminum cans to make new aluminum cans\naluminum combining with oxygen to form aluminum oxide\nwater boiling

Answer

Brief Explanations:

Physical changes do not change the chemical composition of a substance, while chemical changes result in the formation of new substances with different chemical properties. Crushing an aluminum can only changes its shape, not its chemical makeup. Recycling used aluminum cans to make new ones involves melting and reshaping, which is a physical - change process. Water boiling changes water from liquid to gas without altering its chemical formula (H₂O). Aluminum combining with oxygen to form aluminum oxide is a chemical reaction as a new substance (aluminum oxide) is formed.

Answer:

Crushing an aluminum can: Physical change Recycling used aluminum cans to make new aluminum cans: Physical change Aluminum combining with oxygen to form aluminum oxide: Chemical change Water boiling: Physical change