Question

look at each answer choice. decide whether it is an example of a chemical or physical change. three answer choices are examples of physical changes. after pouring baking soda into vinegar, it begins to fizz chemical change lighting a match an iron nail slowly rusts and turns reddish - brown breaking a matchstick physical change putting two cubes of ice into a soda painting the walls of a dollhouse red 9 of 10 next

Explanation:

A chemical change results in a new substance being formed, while a physical change only alters the physical state or appearance without forming a new substance. Pouring baking soda into vinegar causes a chemical reaction producing carbon - dioxide gas, lighting a match causes a combustion reaction creating new substances, and rusting of an iron nail is a chemical reaction with oxygen forming iron oxide. Breaking a matchstick only changes its physical form, putting ice cubes into soda is a physical mixing and melting process, and painting the walls is just a physical coating process.

Answer:

Chemical Change: Pouring baking soda into vinegar, Lighting a match, An iron nail slowly rusts and turns reddish - brown
Physical Change: Breaking a matchstick, Putting two cubes of ice into a soda, Painting the walls of a dollhouse red