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AP Chem Unit 3 Vocab

Total questions: 15

Worksheet time: 30mins

Name
Class
Date
1.
When one of the parts of the solution is water we call it _________. 
a)
water stuff 
b)
water mixture 
c)
aqua-man
d)
aqueous 
2.
What is it about the water molecule that makes it a great solvent?
a)
water demonstrates polarity; a partial charge on each side of the molecule
b)
due to its molecular formula
c)
it has a liner molecular shape
d)
due to it's non-polar molecular structure
3.

Loose ions, in solution, that have a charge (like in Gatorade) are called...

a)

Powerade

b)

aqueous solutions

c)

electrolytes

4.

Weak electrolytes are...

a)

compounds that break apart completely into ions and conduct electricity very well.

b)

compounds that do not break apart completely into ions and do not conduct electricity very well.

c)

compounds that break apart completely into ions, but DO NOT conduct electricity very well.

d)

compounds that do not break apart completely into ions, but DO conduct electricity very well.

5.

__________ electrolytes only break apart partly and conduct electricity a little bit.

a)

Strong

b)

Weak

c)

Acid

d)

non

6.

Substances that do not conduct electricity at all in a solution are called_______________.

a)

acid

b)

science

c)

nonelectrolytes

7.

A(n) _____ solution has a large amount of solute dissolved in it.

a)

dilute

b)

concentrated

c)

supersaturated

d)

Concentrated

8.

The density of 200 mL of water was determined, and then 20 grams of sugar was dissolved in the water. The student determined the density of the sugar-water solution and recorded the collected data in a table. The sugar in this investigation is

a)

the solute

b)

undergoing chemical change

c)

the solvent

d)

changing from a solid to a gas

9.

What do molarity and molality have in common?

a)

Both have "moles solute" in the numerator

b)

Both have "kg solvent" in the denominator

c)

Both have "L solution" in the denominator

d)

Both have "moles solution" in the denominator

10.

Which equation is used to find molarity?

a)

Moles solute/L solution

b)

Moles solute/kg solution

c)

Moles solute/kg solvent

d)

Grams solute/L solution

11.

Which equation is used to find molality?

a)

Moles solute/L solution

b)

Moles solute/kg solution

c)

Moles solute/kg solvent

d)

Grams solute/L solution

12.

The process by which molecular compounds dissolve in water to form ions is

a)

ionization

b)

dissociation

c)

neutralization

d)

dispersion

13.

When ionic compounds dissolve in water to produce ions is called...

a)

ionization

b)

dissociation

c)

evaporation

d)

distillation

14.

A strong acid can be described as...

a)

A substance that completely ionizes in water to produce H+ ions.

b)

A substance that completely ionizes in water to produce OH- ions.

c)

A substance that partially ionizes in water to produce H+ ions.

d)

A substance that partially ionizes in water to produce OH- ions.

15.

A weak base can be described as...

a)

A substance that completely ionizes in water to produce H+ ions.

b)

A substance that completely ionizes in water to produce OH- ions.

c)

A substance that partially ionizes in water to produce H+ ions.

d)

A substance that partially ionizes in water to produce OH- ions.