Physical Change Flashcards
1
Q
What is physical change
A
Is when a substance change shape, form, state, but stay as the same substance
2
Q
What is particle theory
A
All substances are made of particles, which always vibrate
When they got hot, vibrate quicker
When they vibrate quicker the take up more space, spread out
3
Q
What is a mixture?
A
General mixture - salt and pepper
Solution - salt in water
Alloys - mixture of different metals to form a new metal
4
Q
What is a solution?
A
When the particles of one substance are completely surrounded by particles of another
5
Q
What is a solute?
A
The substance that dissolves
6
Q
What is a solvent?
A
The substance that does the dissolving
7
Q
What is diffusion?
A
When particles move from higher concentrations to lower concentrations
