What does it mean when there is a physical change? Question 2 options:

Matter has changed from one substance into another.

Matter has changed on the molecular level.

A new substance has been formed.

Matter has changed size, shape or form

Matter has changed size shape or form

a physical change is when you can see on the outside that a change is happening and you can set it back together like air

a chemical change is a molecular change that you cannot fix. like burnt chocolate

i think slash and

fe 55.85 g/mol and h2o 18.02 g/mol.