Question

a physical change can be described as a change that doesnt affect the chemical composition of the substance. place the following examples under the correct heading that describes the change that occurs. a chemical change affects the chemical composition of the substance, while a physical change doesnt. 8 of 10
physical change
ice melting
matter is conserved
chemical change
rusting of a nail
a raw egg is fried
physical and chemical change
nitrogen gas and hydrogen gas combine and form ammonia
change in shape or phase

Explanation:

A physical change is a change in the form or state of matter without altering its chemical composition. Ice melting is a phase - change from solid to liquid and matter is conserved during physical changes. A chemical change results in a new substance with different chemical properties. Rusting of a nail is oxidation, frying an egg denatures proteins, and nitrogen and hydrogen combining to form ammonia are chemical reactions. Change in shape or phase is a physical change.

Answer:

Physical change: ice melting, matter is conserved, change in shape or phase
Chemical change: rusting of a nail, a raw egg is fried, nitrogen gas and hydrogen gas combine and form ammonia