Question

look at each answer choice. decide whether it is an example of a chemical or physical change. three answer choices are examples of chemical changes. three answer choices are examples of physical changes. chemical change: lighting a match; after pouring baking soda into vinegar, it begins to fizz; an iron nail slowly rusts and turns reddish - brown. physical change: putting two cubes of ice into a soda; painting the walls of a house red; breaking a macaroni stick

Explanation:

A chemical change results in a new substance being formed with different chemical properties. Lighting a match causes a combustion reaction creating new substances. Baking - soda and vinegar react chemically to form carbon - dioxide and other substances. Rusting of iron is a chemical reaction between iron, oxygen, and water forming iron oxide. A physical change only affects the physical appearance of a substance, not its chemical composition. Putting ice cubes in soda is just a change of state of water from solid to liquid. Painting a house only changes the color on the surface without altering the chemical nature of the wall material. Breaking a malletstick is just a physical breakage without any chemical reaction.

Answer:

Chemical Change: Lighting a match, After pouring baking soda into vinegar it begins to fizz, An iron nail slowly rusts and turns reddish - brown
Physical Change: Putting two cubes of ice into a soda, Painting the walls of a house red, Breaking a malletstick