Test - Unit 2 Matter Flashcards
1
Q
- Three examples of physical changes are
A
Boiling water, blowing up a ballon, and melting a candle
U2 C2- properties of matter pg. 10
2
Q
- What term describes when particles escape from the surface of a liquid and becomes gaseous?
A
Evaporation
U2 C3- states of matter pg. 28
3
Q
- Milk, paint, and mayonnaise are all examples of
A
Heterogenous mixtures
U2 C1- Classification of matter pg. 3
4
Q
- Is burning popcorn and making water a physical change, a physical property, a chemical change or a chemical property?
A
A chemical change
U2 C2- properties of matter pg. 10
5
Q
- Is boiling water a physical change, a physical property, a chemical change or a chemical property?
A
A physical property
U2 C2- properties of matter pg. 10
6
Q
- How many grams of NaClO3 are added to make a saturated solution in 100g of water at 90ºC?
A
180g
U2 C4- solutions pg. 32
7
Q
- What is it called when a solid goes to a liquid (two names)?
A
Melting point and heat of fusion
U2 C2- properties of matter pg. 8
8
Q
- What is it called when a liquid goes to a gas (two names)?
A
Boiling point and heat of vaporization
U2 C2- properties of matter pg. 8
9
Q
- What are the three factors that increase the solubility of a substance?
A
- Stirring the substance
- Smaller solute size
- Temperature
U2 C2- solutions pg. 33
10
Q
- If the density is 1.11g/cm3 can it float?
A
No because the density of water is 1g and nothing over 1g/cm3 can float
U2 C2- properties of mater pg. 9
11
Q
Should you always include the unit
A
Yes!
