1. What is a colloid?
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2. What does it mean if a liquid is said to be very volatile?
- If it can't be seperated
- Changes quickly from liquid to a vapor
- Doesn't change quickly
- If it is very clear
3. How does oil paint dry?
4. Define the word 'Hydrophobic'
- Does not like water
- Does mix with water but doesn't like it
- Likes water
- Doesn't mix with water but likes it
5. What is cracking used for?