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chem exam

Total questions: 90

Worksheet time: 3hrs 0mins

Name
Class
Date
1.

Calcium

a)

Ca

b)

CA

c)

Cl

d)

CL

2.

Sulfur

a)

Sf

b)

Sr

c)

S

d)

Su

3.

Zinc

a)

Z

b)

Zc

c)

Zi

d)

Zn

4.

Carbon

a)

CA

b)

Ca

c)

C

d)

Cn

5.

Helium

a)

H

b)

He

c)

HE

d)

Hl

6.

Hydrogen

a)

H

b)

Hy

c)

Hg

d)

h

7.

N

a)

Nitrogon

b)

Notanelement

c)

Sodium

d)

Nitrogen

8.

Fe

a)

Lead

b)

Iron

c)

Gold

d)

Lead

9.

Potassium

a)

T

b)

P

c)

K

d)

Pm

10.

Cl

a)

Chorliden

b)

Chorline

c)

Cobolt

d)

Carbon

11.

Aluminum

a)

A

b)

Am

c)

An

d)

Al

12.

Two or more elements chemically combined together are called a

a)

Element

b)

Compound

c)

Mixture

d)

Solution

13.

The simplest natural substance is called a(n)

a)

Element

b)

Compound

c)

Mixture

d)

Solution

14.

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

a)

Molecule

b)

Compound

c)

Atom

d)

Sprinkle

15.

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

a)

Molecule

b)

Compound

c)

Atom

d)

Sprinkle

16.

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

a)

Atom

b)

Molecule

c)

Compound

d)

Chemical Symbol

17.

The first letter of a chemical symbol is always a

a)

Capital

b)

Lowercase

c)

Number

d)

Symbol

18.

The second letter of a chemical symbol is always a

a)

Capital

b)

Lowercase

c)

Number

d)

Symbol

19.

H2O is an example of

a)

Compound

b)

Element

20.

Ne is an example of

a)

Compound

b)

Element

21.
How many elements are in H2O?
a)
1
b)
2
c)
3
d)
4
22.
What is Fe2O3
(rust) made up of?
a)
1 flourine, 2 einsteinium,
3 oxygen
b)
2 fluorine, 3 oxygen
c)
2 iron, 3 oxygen
d)
2 iron, 3 osmium
23.
If you have a material that can conduct electricity well it is probably a...
a)
Metalloid
b)
Matter
c)
Non-metal
d)
Metal
24.

I can be drawn into wires

a)

Malleable

b)

Ductile

c)

Luster

d)

Conductor

25.
________ are the COLUMNS on the periodic table and are organized by similar properties.
a)
Classifications
b)
Groups
c)
Periods
d)
Elements
26.
Where are the nonmetals located on the periodic table?
a)
top left corner
b)
bottom left corner
c)
top right corner
d)
bottom left corner
27.

Which element is not a metal?

a)

Na

b)

Re

c)

Al

d)

B

28.
Air is a compound.
a)
True
b)
False
29.
Composition of compounds can be separated.
a)
True
b)
False
30.
Compounds are made up of two or more atoms physically combined.
a)
True
b)
False
31.
The properties of the elements that make up a compound are usually very similar to the compound itself.
a)
True
b)
False
32.
How many elements are represented in the compound?
Na2CO3
a)
1
b)
2
c)
3
d)
4
33.
Does this picture show a compound?
a)
No
b)
Yes
34.
Which of the substances below is a compound?
a)
ink
b)
air
c)
oxygen
d)
salt
35.
How many carbon atom/s are present in the compounds CaCO3?
a)
1
b)
2
c)
3
d)
4
36.
Can compounds be found in the periodic table?
a)
Yes
b)
No
37.
Is water an element or a compound?
a)
Element
b)
Compound
38.
A compound consists of two or more elements bound together.
a)
True
b)
False
39.
How many elements are in HHe
a)
3
b)
4
c)
2
d)
5
40.
Is salt (NaCI) a compound or a element
a)
Compound
b)
element
41.

Name the ionic compound, LiCl

a)

lithium chlorine

b)

lithium chloride

c)

lithium chlorate

d)

lithium monochloride

42.

Name the ionic compound, CaCO3

a)

calcium carbide

b)

calcium carbon trioxide

c)

calcium carbon oxide

d)

calcium carbonate

43.

Name the ionic compound, FeBr3

a)

Iron (II) bromide

b)

Iron (III) bromide

44.
K20 - name?
a)
potassium dioxide
b)
potassium oxide
c)
potassium oxygen
d)
dipotassium dioxide
45.
What is the proper name for CaCl2?
a)
Calcium dichloride
b)
Monocalcium dichloride
c)
Calcium chloride
d)
Calcium chlorine
46.

What is the correct molecular formula for sodium nitrate?

a)

NaNO2

b)

Na3N

c)

Na3NO

d)

NaNO3

47.

What is the name for AlBr3?

a)

aluminum bromide

b)

aluminum tribromide

c)

aluminum bromine

d)

monoaluminum tribromide

48.
Name this formula: 
Al2O3
a)
Aluminum Oxide
b)
Aluminum Oxygen
c)
Antimony Oxide
d)
Aluminum (VII) Oxide
49.
find the formula zinc sulfate
a)
ZnSO3
b)
ZnSO4
c)
ZnS
d)
Zn(SO4)2
50.
How are metal oxides formed?
a)
When metals react with oxide.
b)
When metals react with water.
c)
When metals react with air.
d)
When metals react with oxygen.
51.
Which of the following is the product of the reaction of aluminium and oxygen?
a)
aluminium oxide.
b)
metal oxide
c)
aluminium ore
d)
aluminium and oxygen
52.
Which of the following reactions produces calcium oxide?
a)
calcium and oxide
b)
calcium and water
c)
calcium and air
d)
calcium and oxygen
53.

Metal oxides are basic because .....

a)

they form alkaline solutions

b)

they form acidic solutions

c)

they are simple

d)

they are dull

54.

When in solution metal oxides give a pH of .....

a)

0-6

b)

7

c)

3-9

d)

8-14

55.

The property of metals by which they can be beaten in to thin sheets is called

a)

Sonority

b)

Malleability

c)

Ductility

d)

None of the above

56.

The property of metals by which it can be drawn into wires is

a)

Malleability

b)

Sonority

c)

Lustrous

d)

Ductility

57.

Metals are

a)

Hard

b)

Lustrous

c)

Sonorous

d)

Non ductile

58.

Metals are good conductor of

a)

Only heat

b)

Only electricity

c)

Heat and electricity both

d)

None of the above

59.

Non metallic oxides are

a)

Basic

b)

Acidic

c)

Neutral

d)

None of the above

60.
Some students conducted a laboratory investigation to learn more about the physical properties of different elements. They observed four samples and recorded their observations in the table . Based on these observations, which sample is most likely a nonmetal?
a)
Sample 1
b)
Sample 2
c)
Sample 3
d)
Sample 4
61.

By looking at the element illustrated here, how might you classify it by appearance?

a)

Metal

b)

Non-Metal

c)

Metalloid

62.

This picture illustrates copper's

a)

brittleness

b)

malleability

c)

ductility

63.

Brittle

a)

Metal

b)

Non metal

c)

None of them

d)

Both metal and non-metals

64.

A student tested the conductivity of four elements using an incomplete electrical circuit. When the element is placed in the circuit, the bulb lights up brightly, lights up dimly, or does not light up at all based on the element’s ability to conduct electricity. The table below shows the results of her investigation. Based on the results of the conductivity test, which element is classified as a metal?

(a)  

65.

The table shows the properties of four elements. Which element in the table is classified as a metal?

a)

Manganese

b)

Sulfur

c)

Silicon

d)

Neon

66.
Which one of the following would you use to separate sand from iron filings?
a)
a bar magnet
b)
filter paper
c)
chromatography paper
d)
alum
67.
Which of the following pairs of substances may best be separated through distillation
a)
 sand and soil
b)
water and soil
c)
salt and sand
d)
 water and alcohol
68.

Name the method of separation

a)

Fractional distillation

b)

Chromatography

c)

Condensation

d)

Evaporation

69.
A separation technique which uses a fractionating column to separate different liquid components in a mixture with different boiling points by heating mixture is called
a)
Fractional distillation
b)
filtration
c)
crystallization
d)
evaporation
70.
Separating mixtures based on boiling points.
a)
Desalination
b)
Distillation
c)
Decantation
d)
Condensation
71.
Distillation uses two changes of state. what are they?
a)
Evaporation and condensation
b)
Evaporation and freezing
c)
melting and boiling
d)
sublimation and condensation
72.

This diagram represents...

a)

An element

b)

A molecule

c)

A compound

d)

A mixture of elements and compounds

73.

Label part 1

a)

Thermometer

b)

Fractionating column

c)

condenser

74.

Label 2

a)

Thermometer

b)

Fractionating column

c)

condenser

75.

Label 5

a)

Water in

b)

water out

c)

condenser

d)

fractionating column

76.

Label 3

a)

Beaker

b)

Conical Flask

c)

Boiling tube

d)

rounded bottom flask

77.
The air around was is  a mixture of gases.
a)
True
b)
False
78.

Distillation is used to separate ______.

a)

a liquid from its solution.

b)

an insoluble solid from its solution.

c)

a soluble solid from its solution.

79.

Distillation is made up of ___.

a)

evaporation, then condensation

b)

condensation, then evaporation

c)

boiling, then condensation

d)

condensation, then boiling

80.

What is 5?

a)

cooling tube

b)

condenser

c)

distillate

d)

water pump

81.

A mixture of water and alcohol is separated. What is the reading on the thermometer at the end of the experiment?

a)

below 78oC

b)

78oC exactly

c)

78oC to 100oC

d)

100oC exactly

82.

Can a mixture be separated into simpler substances?

a)

yes

b)

no

83.

in a compound, the amounts of elements are always in the same ratio?

a)

yes

b)

no

84.

Can the amounts of substances change in a mixture?

a)

yes

b)

no

85.

sand is titanium dioxide

a)

false

b)

true

86.

Haematite is iron oxide

a)

true

b)

false

87.

Rubies consist of fluorine oxide?

a)

true

b)

false

88.

Magnesium oxide has a low melting point and it is used in furnaces

a)

true

b)

false

89.

Titanium dioxide is a bright white and it is used in paints and toothpastes

a)

true

b)

false

90.

What are hydroxides?

(a)  

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