Test Unit 2 Matter Flashcards
1
Q
- When 2 or more substances are physically combined, the result is a(n).
A
(A) mixture
U2 C1 classification of matter- p. 3
2
Q
- _____ is another name for a homogeneous mixture
A
(D) solution
U2 C1 classification of matter- p. 3
3
Q
- Milk, paint, and mayonnaise are all examples of
A
(B) heterogeneous mixtures
My brain
4
Q
- Saltwater
A
Homo
My brain
5
Q
- Peanut butter
A
Heterogeneous
My brain
6
Q
- Flagrance of a flower
A
PP
My brain
7
Q
- Inflating a tire
A
PC
My brain
8
Q
- In terms of saturation, how would you classify a KBr solution with a concentration of 90g in 100g of water at 10 degrees Celsius?
A
Supersaturated
U2 C4 solutions- p. 32
9
Q
- Bose-Einstein condensates are used to simulate conditions in a _ _____.
A
Black hole
U2 C3 states of matter- p. 27
10
Q
- Lost the 3 parts of the kinetic molecular theory.
A
- Particles are always in constant random motion
- All matter is made up of small particles
- This motion causes the particles to collide with each other and the container that they are in.
U2 C3 states of matter- p. 26
11
Q
Lost and explain the 3 factors that increase the solubility rate of a substance.
A
- Stirring the solvent
- Temperature of the solvent
- Size of the solute particles
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12
Q
- Explain how salt dissociates in water. Be specific.
A
The salt dissolves because the covalent bonds of water is stronger than the ionic bonds of the salt. The water pulls the sodium and chloride ions apart and that breaks the ionic bond.
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