Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

1 Poundstone_Claire PS > Test- Unit 2 Matter > Flashcards

Test- Unit 2 Matter Flashcards

1
Q
  1. Three examples of physical changes are
A

Boiling water, blowing up a balloon, and melting a candle

U2 C2 Notes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q
  1. Matter in which the particles are free to move in all directions until they have spread evenly throughout their container is a
A

Gas

U2 C3 Notes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q
  1. What is another name for a homogeneous mixture?
A

Solution

U2 C1 Notes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q
  1. Increasing the surface area of a solid dose what?
A

Makes the solute dissolve fast in the solvent

U2 C4 notes
pg. 33

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q
  1. Which term best describes when particles escape from the surface of a liquid and become gaseous?
A

Evaporation

U2 C3 notes
pg. 28

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q
  1. Would syrup, water, lemonade, or soda be more viscous?
A

Syrup

U2 C2 notes
pg. 10

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q
  1. Is the fragrance of a flower a physical property, physical change, chemical property, or a chemical change?
A

Physical Property

U2 C2 notes
pg. 10

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q
  1. How many grams of NaCIO3 are needed to make a saturated solution in 100g of water at 90°C?
A

160g

Practice- solubility curve
pg. 34

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q
  1. In terms of saturation, how would you classify a KBr solution with a concentration of90g in 100g of water at 10°C?
A

Saturated

U2 Practice- Solubility Curve
pg. 34

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q
  1. At what temperature is the solubility of KBr the same as KNO3?
A

35°C

U2 Practice- Solubility Curve
pg. 34

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q
  1. The solubility of which salt is the least affected by temperature?
A

NaCl

U2 Practice- Solubility Curve
pg. 34

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q
  1. What happens in between melting and boiling?
A

Heat heat of fusion

U2 C3 notes
pg. 29

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q
  1. What happens in between a liquid becoming a gas, and evaporation?
A

Heat of vaporization

U2 C3 notes
pg. 29

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

50 c. What happens when a gas turns into a liquid?

A

Condensation

U2 C3 notes
pg. 28

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q
  1. Bose-Einstein condensates are used to simulate conditions in what
A

Black holes

U2 C3
pg. 27

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q
  1. Iron and oxygen react to form rust. What will happen to the mass of the rust compared to the mass of the iron and oxygen before reaction? Explain why this will occur.
A

The mass will not change, because the rusting is a chemical change.

U2 C2 notes
pg. 10

17
Q
  1. Explain how salt dissolves, in water.
A

Water is polar, and ionic compounds (like salt) will dissolve well in water because of the attraction of opposite charges.

U2 C4 notes pg 33

1 Poundstone_Claire PS (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions