H.W. (1)
1- In a solution which have more amounts?
A: Solute
B: The same amount of both
C: Solvent
D: Neither
2- How does temperature affect solubility of solid in liquids?
A: Solubility is not affected by temperature
B: Solubility decreases with an increase in temperature
C: Solubility increases with an increase in temperature then decreases
D: Solubility increases with an increase in temperature
3- IF pH of a solution is 4.8 , so the solution is :
A: Acidic
B: Basic
C: Neutral
D: Neither
4- Solute is:
A: What gets dissolved into a solvent
B: A mixture of two solutions
C: Water
D: Neither
5- How does a solute dissolve into a solvent?
A: Polar solvent molecules separate the molecules of other polar substances
B: Polar solvent molecules separate the molecules of other non-polar
substances
C: polar solvent molecules separate the molecules of other non-polar
substances
D: Polar& non-polar solvent molecules separate the molecules of other polar
substances
6- What are the main factors that affect solubility?
A: Temperature
B: Pressure
C: Nature of solute and solvent
D: All of the above
7- When two liquids mix, so, they are:
A: Insoluble
B: miscible
C: Solution
D: Soluble
8- Solution is unsaturated when it has.
A: Too much solute
B: Not enough solvent
C: Not enough solute
D: Just enough solute
9- Fog is a solution of:
A: Air in water vapors
B: Air in air
C: Vapors in vapors
D: Water vapors in air
10- Number of moles of solute dissolved per dm3 (Liter) of solution is:
A: Molality
B: Mass percentage
C: Concentration
D: Molarity