False.
a reactant
Clay undergoes a physical change when it's in someone's hands.
A catalyst undergoes no chemical change during a chemical reaction.
ascend
I think it mean protection
The chemical composition of a substance does not change when it undergoes a physical change.
A scale factor of one means that there is no change in size.
when something undergoes a chemical reaction, its properties may change. meaning the properties could be different than whhat they started off as.
when something undergoes a chemical reaction, its properties may change. meaning the properties could be different than whhat they started off as.
This is called reaction rate.
no
If a substance undergoes a chemical change, its properties change. For example, water, when heated turns into a gas which has a higher volume.
reactants
chemical change.
That is correct, a candle (or the material of which it is composed, which is usually paraffin) undergoes a chemical change when it burns.
Wonder if this means "metamorphosis"? Generally speaking that means a change in form, often applied in biology when an organism undergoes a radical change in its structure, like a caterpillar becoming a butterfly.
a chemical change