answersLogoWhite

0

What is a chemical and physical change?

Updated: 4/28/2022
User Avatar

Wiki User

βˆ™ 13y ago

Best Answer

Physical change - a change in a substance that does not involve a change in the identity, including a change in state between solid, liquid and gas phases.

Chemical change - a change which one or more substances are converted into different substances, some indications are burning, rusting, color changes etc.
physical change can be changed

but in chemical change chemicals are mixed together

for example if we are sick that is a physical change

we have to change healthy as well

when we mix salt in a dish,can we take out that again?

never

this is chemical change
A physical change is when the object undergoes a change that can be reversed, such as mixing water with salt, melting ice, or freezing or vaporizing water. A chemical change is a change that changes a substance into something else entirely, and therefore cannot be reversed. Examples would be mixing vinegar and baking soda or turning batter into bread.
chemical change is when during a chemical reaction a new substance will be formed while in physical change no new substances are formed

User Avatar

Wiki User

βˆ™ 12y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

βˆ™ 11y ago

A chemical change is a change in which a substance turns into a completely different substance that can't be reversed. A chemical change often happens when asubstance burns (not to be confused with evaporation or melting of a substance), changes colors, a substance spoils or rusts, photosynthesis or respiration, and/or a substance tarnishes. Some examples are a bike rusting, burning bread to make toast, fireworks exploding, milk spoiling, a leaf changing color, mixing eggs and flour for a batter, baking a cake, etc.

A physical will dissolve, go through a state of matter (sublimation, decomposition, melting, freezing, evaporation, and condensation), break or tear a substance, and/or anything that can be reversed back. This could be glass breaking, salt dissolving in water, ice melting, water evaporating, paper tearing, sugar dissolving in tea, etc.

This answer is:
User Avatar

User Avatar

Wiki User

βˆ™ 13y ago

a chemical change has properties like tarnishing,rusting , burning,and photosyntesis also there is always a reaction and something new and a phsical change has properties like odor, taste,and texture theres no reaction or something new

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is a chemical and physical change?
Write your answer...
Submit
Still have questions?
magnify glass
imp