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Chem Final (Summer)

Total questions: 100

Worksheet time: 59mins

Name
Class
Date
1.

Wear proper _______ at all times during laboratory activity.

a)

sandals

b)

matching clothing

c)

accessories with bling

d)

eye protection

2.

Hair should be _________ in the laboratory.

a)

styled with lots of hair spray

b)

securely tied up

c)

let down to show off your curls

d)

played with to gain volume

3.

You should eat, drink, or chew gum ________ in the laboratory.

a)

all the time!

b)

only when chemicals are contained in test tubes

c)

only when your partner is dealing with the chemicals

d)

Never!!!!!

4.

Never engage in _________ or practical jokes

a)

horseplay

b)

experiments

c)

studying

5.

You can't wear this type of footwear in the lab

a)

tennis shoes

b)

flip-flops (sandals)

c)

boots

d)

running shoes

6.

Which of these is allowed to be discarded down the sink?

a)

chemicals

b)

insoluble solids

c)

filter paper

d)

water

7.

Always add _____ to acid

a)

acid

b)

chlorine

c)

water

d)

sodium

8.

Always return chemicals to original containers

a)

true

b)

false

9.

You don't need to wash your hands before leaving the lab

a)

true

b)

false

10.

Corrosive:

a)

dangerous, risky

b)

will dissolve metal rapidly

c)

evaporates rapidly

d)

capable of burning or destroying live tissue

11.

Volatile:

a)

dangerous, risky

b)

will dissolve metal rapidly

c)

evaporates rapidly

d)

capable of burning or destroying live tissue

12.

Caustic:

a)

dangerous, risky

b)

will dissolve metal rapidly

c)

evaporates rapidly

d)

capable of burning or destroying live tissue

13.

Hazardous:

a)

dangerous, risky

b)

will dissolve metal rapidly

c)

evaporates rapidly

d)

capable of burning or destroying live tissue

14.

container used to hold liquids; mouth is smaller than the base

a)

test tube

b)

flask

c)

crucible

d)

graduated cylinder

15.

used to determines the mass of a substance

a)

balance/ scale

b)

yard stick

c)

hot plate

d)

thermometer

16.

used to hold a single test tube

a)

beaker

b)

test tube tray

c)

wash bottle

d)

test tube holder/ clamp

17.

used to clean test tubes

a)

funnel

b)

test tube brushes

c)

pipet

d)

test tube clamp

18.

provides a spark to light a bunsen burner

a)

forcepts

b)

test tube clamp/ holder

c)

striker

d)

tongs

19.

measures the temperature of a liquid

a)

hot plate

b)

thermometer

c)

balance/scale

d)

yard stick

20.

cover to prevent splattering, evaporate a very small amount of liquid

a)

evaporating dish

b)

watch glass

c)

spot plate

d)

mortar and pestle

21.

transfer small crystals or other substances

a)

pipet

b)

tongs

c)

Chemical scoop

d)

stir rod

22.

used to stir a liquid in a flask or beaker

a)

forcepts

b)

test tube holder

c)

spatula

d)

stir rod

23.

a plug for glassware to prevent evaporation/ contamination

a)

wire gauze

b)

weigh tray

c)

rubber stopper

d)

crucible

24.

measures volume of a liquid

a)

bunsen burner

b)

balance/ scale

c)

thermometer

d)

graduated cylinder

25.

contains purified water for cleaning labware

a)

wash bottle

b)

test tube

c)

flask

d)

beaker

26.

worn to protect eyes during experiments

a)

contacts

b)

glasses

c)

goggles

d)

looking between your fingers

27.

testing apparatus for conducting multiple experiments involving liquids

a)

beaker

b)

wire gauze

c)

spot plate

d)

flask

28.

container for solid chemicals during weighing

a)

spot plate

b)

weight tray

c)

chem scoop

d)

clay triangle

29.

a small container used for heating liquids at high temperatures on a hot plate

a)

mortar and pestle

b)

watch glass

c)

evaporating dish

d)

spot plate

30.

used to heat a small amount of solid to a very high temperature

a)

beaker

b)

test tube

c)

flask

d)

crucible

31.

heat source that uses natural gas

a)

bunsen burner

b)

hot plate

c)

wire gauze

d)

balance / scale

32.

holds test tubes in place

a)

hot plate

b)

test tube rack

c)

spot plate

d)

graduated cylinder

33.

used to grind large crystals to a fine powder

a)

mortar and pestle

b)

spot plate

c)

watch glass

d)

evaporating dish

34.

used to pick up a hot flask or other hot items

a)

tongs

b)

hands

c)

striker

d)

forcepts

35.

What are the appropriate units and lab instruments to measure temperature?

a)

Fahrenheit, thermometer

b)

Kelvin, thermometer

c)

Celsius, thermometer

d)

Grams, scale

36.

What are the appropriate units and lab instruments to measure mass?

a)

grams, digital scale

b)

lbs, balance

c)

meters, balance

d)

kilos, digital scale

37.

What are the appropriate units and lab instruments to measure time?

a)

hours, stop watch

b)

minutes, count aloud

c)

seconds, stop watch

d)

seconds, count aloud

38.

What are the appropriate units and lab instruments to measure volume?

a)

cm3cm^3 , ruler

b)

milliliter, ruler

c)

cm3cm^3 , graduated cylinder

d)

milliliter, graduated cylinder

39.

What are the appropriate units and lab instruments to measure length?

a)

meter,  ruler (meter stick)

b)

milliliter, ruler (meter stick)

c)

meter,  graduated cylinder

d)

milliliter, graduated cylinder

40.

accuracy means.....

a)

how close the measurement is to the actual value (bulls-eye)

b)

how close the measurements are to each other (grouping)

c)

how close the measurements are to the hypothesis (good guess)

41.

precision means.....

a)

how close the measurement is to the actual value (bulls-eye)

b)

how close the measurements are to each other (grouping)

c)

how close the measurements are to the hypothesis (good guess)

42.
40 cm = ______ mm
( 1 cm = 10 mm)
a)
4000
b)
40
c)
400
d)
None of the Above
43.

6 kg = _____ g

a)

6

b)

6000

c)

600

d)

.006

44.
18,000 g ____ 10 kg
(1 kg is 1000 g)
a)
<
b)
=
c)
>
45.
1 L = _______ mL
a)
1
b)
10
c)
100
d)
1000
46.
15,000 g = ____ kg
(1000 g = 1 kg)
a)
1.5
b)
150
c)
1,500
d)
15
47.
6 cm =______mm 
(1 cm is 10 mm)
a)
.6
b)
6
c)
60
d)
600
48.

In which model was it believed the atom was composed of electrons in a soup of positive charge?

a)

Thomson's model

b)

Rutherford's Model

c)

Bohr's Model

d)

Greek Models

49.

In which model was the nucleus discovered to be at the center of the atom and were able to estimate the size of the atom?

a)

Thomson's model

b)

Rutherford's Model

c)

Bohr's Model

d)

Greek Models

50.

Which model was made to demonstrate regularities of the periodic table. It shows the build of electrons in orbital shells.

a)

Thomson's model

b)

Rutherford's Model

c)

Bohr's Model

d)

Greek Models

51.

Chemistry is the study of __________. (don't think about just one thing it studies, what does it study overall)

a)

chemicals

b)

bonding

c)

atoms

d)

matter

52.

Name all the pieces of the center of the atom

a)

nucleus

b)

protons

c)

neutrons

d)

electrons

53.

what part of the atom determines what element it will be?

a)

proton

b)

neutron

c)

electron

54.

a neutral atom has _____

a)

the same number of protons as neutrons

b)

the same number of neutrons as electrons

c)

the same atomic mass as atomic number

d)

the same number of electrons as protons

55.

If you add a neutron to an atom, it will affect....

a)

what the name of the element is

b)

the charge to make it positive

c)

the charge to make it negative

d)

make it's mass increase

56.

If you add an electron to an atom, it will affect....

a)

what the name of the element is

b)

the charge to make it positive

c)

the charge to make it negative

d)

make it's mass increase

57.
Isotopes are elements with a different amount of
a)
protons
b)
neutrons
c)
electrons
d)
atoms
58.
How are electrons arranged in an atom?
a)
In groups of five
b)
In energy levels
c)
By color
d)
By shape
59.
Rows on the period table are called _____ while columns are called _____.
a)
groups, families
b)
groups, periods
c)
periods, groups
d)
families, groups
60.
How many valence electrons are in an atom of Ba?
a)
2
b)
8
c)
4
d)
1
61.
How many valence electrons are in an atom of Ar?
a)
2
b)
8
c)
4
d)
1
62.

How many valence electrons does carbon have?

a)

4

b)

5

c)

6

d)

7

63.

What are valence electrons?

a)

The total number of electrons in an atom

b)

The number of electrons in the outermost shell

c)

The number of electrons in the second shell

d)

The number of protons in the outermost shell

64.

How many valence electrons in Oxygen?

a)

5

b)

6

c)

7

d)

8

65.
K20 - name?
a)
potassium dioxide
b)
potassium oxide
c)
potassium oxygen
d)
dipotassium dioxide
66.

Name the following compound:

CO2

a)

monocarbon dioxide

b)

carbon oxide

c)

carbon dioxide

d)

oxygen carbonide

67.

What is the correct formula of phosphorus trichloride?

a)

P2Cl3

b)

P3Cl3

c)

PCl3

d)

PCl5

68.

What is the correct molecular formula for sodium nitrate?

a)

NaNO2

b)

Na3N

c)

Na3NO

d)

NaNO3

69.

What is the correct molecular formula for barium hydroxide?

a)

Ba(OH)2

b)

Ba2OH

c)

BaOH

d)

Ba2OH

70.

What is the name for AlBr3?

a)

aluminum bromide

b)

aluminum tribromide

c)

aluminum bromine

d)

monoaluminum tribromide

71.

What elements make up ionic compounds?

a)

metal and metal

b)

metal and non-metal

c)

non-metal and non-metal

72.

What elements make up covalent compounds?

a)

metal and metal

b)

metal and non-metal

c)

non-metal and non-metal

73.

What is a cation?

a)

when the atom loses electrons

b)

when the atom gains electrons

c)

when the atom gains protons

d)

when the atom loses protons

74.

What is a anion?

a)

when the atom loses electrons

b)

when the atom gains electrons

c)

when the atom gains protons

d)

when the atom loses protons

75.

The electron configuration of an atom is 1s22s22p63s23p2 The number of valence electrons in the atom is

a)

2

b)

4

c)

8

d)

10

76.

The difference between covalent and ionic bonds is.....

a)

ionic share electrons and covalent takes electrons

b)

ionic bond is a messy bond while covalent bond is lattice (organized)

c)

ionic bonds have a lattice structure and covalent has a sea of electrons

d)

ionic steals electrons and covalent shares electrons

77.

How many valence electrons in a triple bond _______, double bond ______, single bond _______

a)

6, 5, 4

b)

4, 3, 2

c)

2, 4, 6

d)

6, 4, 2

78.

Which is a diatomic molecule?

a)

HF

b)

N2

c)

CaS

d)

CO2

79.

What does polar mean?

a)

the atom was found in the arctic

b)

electrons are shared unequally

c)

the molecule is in the shape of a pole (straight)

d)

electrons are shared equally

80.
Calculation used to find the number of neutrons in an atom
a)
Atomic Mass - Atomic Number
b)
Atomic Number - Atomic Mass
c)
Atomic Mass - Electrons
d)
none of these
81.
Value representing the number of protons in an element
a)
Atomic Mass
b)
Mass Number
c)
Valence Electrons
d)
Atomic Number
82.
Measure mainly of the nuclear particles: protons + neutrons
a)
Subatomic Particles
b)
Atomic Number
c)
Atomic Mass
d)
Gluons
83.

According to the Octet Rule, atoms of elements react with each other in order to attain ____ electrons in their outermost energy level or shell.

a)

2

b)

4

c)

6

d)

8

e)

10

84.

The vertical (up and down) columns in the Periodic Table are called

a)

groups

b)

towers

c)

periods

d)

atomic numbers

85.

The horizontal (side to side) rows in the Periodic Table are called

a)

groups

b)

families

c)

periods

d)

atomic numbers

86.

Which color represents the Noble gases

a)

purple

b)

orange

c)

yellow

d)

red

87.

Which color represents the Transition Metals

a)

purple

b)

orange

c)

yellow

d)

red

88.

Which color represents the Metalloids/ Semi-Metals

a)

green

b)

light blue

c)

yellow

d)

red

89.

What kind of bond does HCl make?

a)

ionic

b)

non-polar covalent

c)

polar covalent

d)

metallic

90.

What kind of bond does Cl2 make?

a)

ionic

b)

non-polar covalent

c)

polar covalent

d)

metallic

91.

What kind of bond does SI make?

a)

ionic

b)

non-polar covalent

c)

polar covalent

d)

metallic

92.
What is ionization energy?
a)
Energy needed to destroy an atom
b)
Energy required to remove an electron
c)
Energy needed to split an electron
d)
Energy required to add an electron
93.
Electronegativity is...
a)
how good an atom is at attracting electrons
b)
the ability of an atom to lose electrons
c)
the energy required to remove an electron from a specific atom
d)
how easy it is to make friends. 
94.

The atomic radius is.....

a)

the measurement from one side of the outer shell to the other

b)

the measurement of the center of the nucleus to the outside of the nucleus

c)

the measure from the outside of the nucleus to the outer shell

d)

the measurement from the center of the nucleus to the outer shell

95.

Is this molecule polar or non-polar?

a)

Polar

b)

Non-polar

96.

Is this molecule polar or non-polar?

a)

Polar

b)

Non-polar

97.

Is this molecule polar or non-polar?

a)

Non-polar

b)

Polar

98.

Is this molecule polar or non-polar?

a)

Polar

b)

Non-polar

99.

Is this molecule polar or non-polar?

a)

Non-polar

b)

Polar

100.

In what direction would the dipole face (arrow pointing towards) if it is polar?

a)

not polar

b)

up

c)

left

d)

right

e)

Down

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