look at each answer choice. decide whether it is an example of a chemical or physical change. three answer…

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.\nchemical change\nphysical change\nafter pouring baking soda into vinegar, it begins to fizz\nputting two cubes of ice into a soda\nan iron nail slowly rusts and turns reddish - brown\npainting the walls of a dollhouse red\nlighting a match\nbreaking a matchstick

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.\nchemical change\nphysical change\nafter pouring baking soda into vinegar, it begins to fizz\nputting two cubes of ice into a soda\nan iron nail slowly rusts and turns reddish - brown\npainting the walls of a dollhouse red\nlighting a match\nbreaking a matchstick

Answer

Explanation:

Step1: Recall chemical change definition

A chemical change results in a new substance being formed.

Step2: Analyze "pouring baking soda into vinegar"

Baking - soda (sodium bicarbonate) reacts with vinegar (acetic acid) to form carbon - dioxide gas, water and sodium acetate. So it is a chemical change.

Step3: Analyze "putting two cubes of ice into a soda"

The ice melts, which is a change of state from solid to liquid. No new chemical substances are formed. It is a physical change.

Step4: Analyze "an iron nail slowly rusts"

Iron reacts with oxygen and water in the air to form iron oxide (rust), a new substance. It is a chemical change.

Step5: Analyze "painting the walls of a dollhouse red"

The paint adheres to the wall, but no chemical reaction occurs to change the chemical composition of the paint or the wall material. It is a physical change.

Step6: Analyze "lighting a match"

The chemicals on the match head react with oxygen in the air to produce heat, light and new chemical substances. It is a chemical change.

Step7: Analyze "breaking a matchstick"

The matchstick is physically broken into pieces, but its chemical composition remains the same. It is a physical change.

Answer:

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