Physical Changes and Equilibrium Flashcards
1
Q
what is the difference between a chemical change and a physical change?
A
a chemical change is harder to reverse than a physical change and a chemical hangs creates a new substance
2
Q
give an example of a chemical change
A
frying an egg
3
Q
give an example of a physical change
A
melting ice
4
Q
what does a physical change not involve?
A
living things or new substances being formed
5
Q
what do forces and energy transfers cause?
A
physical changes without changes to the chemicals involved
6
Q
what is changing state?
A
a physical change
7
Q
what does equilibrium mean?
A
balanced
8
Q
what must take place in order to reach equilibrium?
A
energy transfers, particles moving differently, the objects change position
