0
When substances are given energy they may change state This is a physical change If they do not receive enough energy to change state they will still experience a physical change What is this call?
Wiki User
∙ 12y ago
heating
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
When you reuse a crystal heat pack is that a chemical or physical change?
physical change as no new substances have been created
Is it true that if a physical change that occurs when a substance changes composition by forming one or more new substances?
No. That is a chemical change. In a physical change, their is no change in chemical composition forming one or more new substances.
Is the fermenting of cheese a physical change?
"A physical change is any change not involving a change in the substance's chemical identity. Matter undergoes chemical change when the composition of the substances changes: one or more substances combine or break up (as in a relationship) to form new substances" From This I gather that its a physical change as the cheese isn't changed into another substance, The cheese doesnt change, for example it doesnt taste or smell different, But its physical propertys do change it looks different
Does physical change differ from a chemical in that waste products are formed through chemical changes?
Yes,physical change is different in chemical change because chemical change form a new substances or product that may arise into two substances held in chemical change
Is mixing two substances and light is produced a chemical or physical change?
chemical
What substances undergo physical change?
All substances have physical changes.
Does not change a substances identity physical or chemical change?
It is a physical change.
Is Molding food a chemical or physical change and why?
its a physical joking its a chemical change a physical is one substances, and a chemical change is two or more substances so the answer is to food molding a chemical change
What undergoes physical change?
All substances have physical changes.
Is it a physical change or a chemical change when substances combine to make new substances with new properties?
Chemical change.
Can a physical change change what a substances is?
No. The whole idea of a physical change is one which does not alter the nature of the substance.
Is mixing sand and gravel a physical or chemical change?
It's a physical change
When substances are formed that are different from the starting substances has physical change occurred?
A chemical reaction is a chemical change.
Is a tree a chemical or physical change?
it's a physical change because no new substances were formed.
What is produced by a chemical change?
Unlike a physical change, a chemical change produces new substances with properties different from those of the original substances.
Does a change in substances and properties go with physical change?
no, if it's a substance change then it's a chemical change. If it were a physical change then it would be the same substance
When you reuse a crystal heat pack is that a chemical or physical change?
physical change as no new substances have been created
