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Test Review for DA #1

Total questions: 50

Worksheet time: 49mins

Name
Class
Date
1.

The simplest natural substance is called a(n)

a)

Element

b)

Compound

c)

Mixture

d)

Solution

2.

The simplest natural substance is called a(n)

a)

Element

b)

Compound

c)

Mixture

d)

Solution

3.

Two or more elements chemically combined together are called a

a)

Element

b)

Compound

c)

Mixture

d)

Solution

4.

The smallest amount you can have of one element is a(n)

a)

Molecule

b)

Compound

c)

Atom

d)

Sprinkle

5.

The smallest amount you can have of a compound is called a

a)

Molecule

b)

Compound

c)

Atom

d)

Sprinkle

6.

Scientists use a _____________ as an abbreviation for an element name.

a)

Atom

b)

Molecule

c)

Compound

d)

Chemical Symbol

7.

The first letter of a chemical symbol is always a

a)

Capital

b)

Lowercase

c)

Number

d)

Symbol

8.

The second letter of a chemical symbol is always a

a)

Capital

b)

Lowercase

c)

Number

d)

Symbol

9.

H2O is an example of

a)

Compound

b)

Element

10.

Ne is an example of

a)

Compound

b)

Element

11.

CaCl2 is an example of

a)

Compound

b)

Element

12.

How many different types of atoms are there in the following molecule?

a)

7

b)

6

c)

3

d)

8

13.

Which of the diagrams below represent a mixture?

a)

A

b)

B

c)

C

d)

D

14.

A __ mixture is a mixture in which the composition is not uniform throughout the mixture.

a)

element

b)

homogenous

c)

heterogenous

d)

compound

15.

Which of the following is a homogeneous mixture?

a)

sand in a bottle

b)

lemonade

c)

Mercury

d)

salad

16.

How many atoms are present in one molecule of glucose, C6H12O6

a)

3

b)

12

c)

24

d)

4

17.

An element is a ___ that cannot be separated into simpler substances by physical or chemical means.

a)

pure substance

b)

mixture

c)

solution

d)

compound

18.

__ is a pure substance containing two or more kinds of atoms.

a)

Element

b)

compound

c)

mixture

d)

solution

19.

Water is made up of hydrogen and oxygen, two elements that were chemically combined. This makes water a(n)

a)

atom

b)

compound

c)

element

d)

mixture

20.

What is aluminum (Al)?

a)

Element

b)

Compound

c)

Mixture

21.

What is table salt (NaCl)?

a)

Element

b)

Compound

c)

Mixture

22.

What is air?

a)

Element

b)

Compound

c)

Mixture

23.

What is an element?

a)

A substance that is made up of one type of atom and can't be reduced to simpler substances.

b)

A substance made of two or more different atoms chemically bonded to one another. They can only be destroyed by chemical processes.

c)

A material containing two or more elements or compounds that are in close contact and are mixed in any proportion. They can be separated by physical means.

24.

Which of the following is an example of an element?

a)

Cu (copper)

b)

H20 (water)

c)

cereal

d)

CO2 (carbon dioxide)

25.

Where can you find examples of elements?

a)

Dictionary

b)

Periodic table of compounds

c)

Periodic table of elements

d)

Your neighbor

26.

Which letter represents a mixture?

a)

D

b)

G

c)

E

d)

A

27.
How many Hydrogen are in 4H2O?
a)
6
b)
8
c)
2
d)
4
28.
How many Oxygen are in H2O?
a)
1
b)
2
c)
0
d)
4
29.
How many Magnesium are in 10MgCl2?
a)
10
b)
5
c)
20
30.
Number of H in 3(NH₄)₂CrO₄
a)
4
b)
2
c)
8
d)
24
31.
How many atoms are there TOTAL in:
H2SO4
a)
6
b)
5
c)
7
d)
3
32.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
33.
How many Sodium (Na) are in 6NaCl?
a)
1
b)
12
c)
6
34.
Number of N in (NH₄)₂CrO₄
a)
1
b)
2
c)
8
d)
16
35.
How many Sodium (Na) are in 6NaCl?
a)
1
b)
12
c)
6
36.
Number of N in (NH₄)₂CrO₄
a)
1
b)
2
c)
8
d)
16
37.
A subscript is the small number below a(n) ________ that tells the number of _______ of that element.
a)
element symbol; atoms
b)
atom; element symbol
c)
subscript; protons
d)
compound; elements
38.
How many O's are in Al₂(SO₄)₃
a)
4
b)
12
c)
7
d)
24
39.

What is the term used to describe the substance that is dissolved in a solution?

a)

Solvent

b)

Solute

c)

Concentration

d)

Dilution

40.

A solution is also known as a...

a)

homogeneous compound

b)

homogeneous mixture

c)

heterogeneous mixture

d)

heterogeneous compound

41.

The ___ does the dissolving, while the ____ gets dissolved.

a)

solvent, solute

b)

solute, solvent

c)

solute, solution

d)

solution, solute

42.

There is always more ____ than _____.

a)

solute, solvent

b)

solvent, solute

c)

solvent, solution

d)

solute, solution

43.
A solution is a ________ mixture. 
a)
heterogeneous 
b)
homogeneous 
c)
dumb 
d)
mixed 
44.
When one of the parts of the solution is water we call it _________. 
a)
water stuff 
b)
water mixture 
c)
aqua-man
d)
aqueous 
45.
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
46.
What is this process called?
a)
Evaporating
b)
Distiilation
c)
Filtration
d)
Decanting
47.

Which atom of a water molecule has a partial negative charge? (HINT: think about which atom is more electronegative)

a)

H

b)

O

48.

What happens when NaCl (s) is dissolved in water?

a)

Cl - ions are attracted to the oxygen atoms in water

b)

Na + ions are attracted to the oxygen atoms in water

c)

Na + ions are attracted to the hydrogen atoms in water

d)

no attractions are involved

49.

(a)   is a process of recovering a salt (solute) from a mixture by evaporating off the water.

50.

What is the term used to describe a solution in which water is the solvent?

a)

Aqueous solution

b)

Concentration

c)

Solute

d)

Solvent

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