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Unit 11 & 12 Review Quiz

Total questions: 45

Worksheet time: 2hrs 1mins

Name
Class
Date
1.

Holly has an unknown substance in a beaker. She wants to determine the relative pH of the unknown substance. She places a piece of blue litmus paper into the substance, and the litmus paper stays blue.

The substance in the beaker

a)

is a base.

b)

has a neutral pH.

c)

is an acid.

d)

does not have a pH.

2.

Which of the following statements is correct?

a)

Blue litmus paper turns red when placed in a base.

b)

Red litmus paper turns blue when placed in a base.

c)

Blue litmus paper stays blue when placed in an acid.

d)

Red litmus paper stays red when placed in a base.

3.

Which of the following is an acid?

a)

shampoo

b)

baking soda

c)

orange juice

d)

water

4.

The pH of a solution is tested, and it is found to be a basic solution. Of the following choices, what could the pH have been?

a)

3

b)

9

c)

7

d)

5

5.

Many cleaning solutions are bases. Which of the following is a property of most bases?

a)

feels slippery

b)

white color

c)

can only be liquid

d)

tastes sour

6.

Tastes bitter.

a)

Acids

b)

Bases

c)

Salts

d)

All

7.

When dissolved in water, acids produce:

a)

bases

b)

salts

c)

hydrogen ions

d)

hydroxide ions

8.

water is a univeral solvent

a)

True

b)

False

9.

warm water and shaking are two factors that will....

a)

speed up the rate of a substance dissolving

b)

slow down the rate of a substance dissolving

c)

make no difference to the rate of a substance dissolving

d)

c

10.

what do you get when you put a solute and solvent together?

a)

a solvent

b)

a solute

c)

a solution

d)

an element

11.

what do you call the part of a solution which causes something to dissolve?

a)

a suspension

b)

saturated

c)

a solvent

d)

a solute

12.

what is the part of a solution that gets dissolved?

a)

a solvent

b)

a colloid

c)

a solute

d)

a suspension

13.

which type of heterogenous mixture has very small particles throughout that are too small to see?

a)

a suspension

b)

a solvent

c)

a solute

d)

a colloid

14.

which is an example of a colloid?

a)

milk

b)

vegetable soup

c)

soft drink

d)

mint rea

15.

when a solvent dissolves the maximum amount of solute it can hold, it is called

a)

unsaturated

b)

diluted

c)

saturated

d)

suspension

16.

when a solvent can dissolve more solute you say that it is...

a)

concentrated

b)

unsaturated

c)

saturated

d)

suspended

17.

in a solution of salt and water, which is the solute?

a)

water

b)

salt

c)

salt water

d)

the glass

18.

What type of decay is shown here

23892U ---> 23490Th + 42He.

a)

alpha

b)

beta

c)

gamma

19.

What type of nuclear decay is shown here

13756Ba →→ 13756Ba + γ rays

a)

alpha

b)

beta

c)

gamma

20.

Finish this equation

20983Bi--> _______ + 20581Tl

a)

42He

b)

0-1e

c)

y

21.

Identify the type of nuclear decay shown here

21483Bi → 0-1e + 21484Po

a)

alpha

b)

beta

c)

gamma

22.

finish the equation


22688Ra --> ____ + 22688Ra

a)

42He

b)

0-1e

c)

y

23.

finish the equation


18173Ta --> ____ + 18174W

a)

42He

b)

0-1e

c)

y

24.
What particle completes this reaction?
a)
alpha particle
b)
beta particle
c)
gamma particle
d)
neutron
25.
The most penetrating type of radiation is the ____.  
a)
alpha particle
b)
gamma ray
c)
beta particle
d)
uranium
26.

Solve this equation for the missing element.

a)

Ag-115

b)

Cd-115

c)

Pd-115

d)

Not Listed

27.
What is the symbol for an alpha particle?
a)
42He
b)
0-1e
c)
0+1 e
d)
10n
28.

Solve for the missing daughter atom in the following equation:

146C --> 0-1e + ________

a)

145B

b)

146C

c)

147N

d)

42He

29.

Has the symbol

a)

Alpha

b)

Beta

c)

Gamma

d)

Positron

30.

Element X has 8 protons, 7 neutrons, and 10 electrons. What is the element?

a)

Nitrogen

b)

Oxygen

c)

Neon

d)

Phosphorus

31.

Element X has 8 protons, 7 neutrons, and 10 electrons. What is the mass number?

a)

8

b)

15

c)

16

d)

18

32.

Solve the nuclear decay reaction:

a)
b)
c)
d)
33.

finish the equation


18173Ta --> ____ + 18174W

a)

42He\frac{4}{2}He  

b)

0−1e\frac{0}{-1}e  

c)

00Υ\frac{0}{0}\Upsilon  

d)

0+1e\frac{0}{+1}e  

34.
Takes two small nuclei and combines them into a larger nucleus
a)
fission
b)
fusion
35.
The splitting of a nucleus into smaller nuclei is
a)
fusion
b)
fission
c)
half-life
d)
gamma radiation
36.
How is nuclear fusion different from nuclear fission?
a)
In fusion, the product is a larger atomic nucleus.
b)
Fission produces energy but fusion does not.
c)
Fusion produces energy but fission does not.
d)
In fission, the product is a larger atomic nucleus.
37.
This is an example of ---
a)
Radioactive Decay
b)
Nuclear Fission
c)
Nuclear Fusion
d)
Fossil fuel reaction
38.
If 10 mg of iodine 131 is given to a patient, how much is left after 24 days? The half-life of iodine-131 is 8 days.
a)
1.25mg
b)
1.25g
c)
10g
d)
10mg
39.
If the half-life of uranium-232 is 70 years, how many half-lives will it take for 10 g of it to be reduced to 1.25 g?
a)
1 half-life
b)
2 half-lives
c)
3 half-lives
d)
4 half-lives
40.
What is Half-life?
a)
The amount of time it takes for some of the nuclei in a sample of the isotope to decay
b)
The amount of time it takes for half the electrons in a sample of the isotope to decay
c)
The amount of time it takes for half the nuclei in a sample of the isotope to decay
d)
the amount of time it takes to double the nuclei in a sample of the isotope to decay
41.
The half-life of Zn-71 is 2.4 minutes. If one had 100.0 g at the beginning, how many grams would be left after 7.2 minutes has elapsed?
a)
100.0g
b)
50.0g
c)
12.5g
d)
8.5g
42.

Geologist use the time it takes for a radioactive isotope to decay to half its original mass called a___________.

a)

radioactive decay

b)

isotope

c)

half-life

d)

carbon dating

43.

After 22,800 years, approximately what percentage of the original carbon-14 remains?

a)

15%

b)

12.5%

c)

6.25%

d)

3.125%

44.

The % of the parent isotope remaining after 1 Half Life.

a)

50%

b)

25%

c)

12.5%

d)

6.25%

45.
You have 100 grams of radioactive C-14. The half life of C-14 is 5730 years. 
How many grams are left after 1 half life? 
a)
100 grams
b)
25 grams
c)
2 grams
d)
50 grams

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