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Walton's Final Exam - 2019

Total questions: 90

Worksheet time: 2hrs 4mins

Name
Class
Date
1.

What is the metric unit for volume?

a)

Meters

b)

Liters

c)

Grams

2.

Which one is not a metric unit?

a)

Liter

b)

Pound

c)

Celcius

3.

Which instrument would you use to accurately measure mass?

a)

Beaker

b)

Graduated cylinder

c)

Electronic balance

4.

The average mass of a squirrel is 1.8 ____

a)

kg

b)

g

c)

mg

5.

A piece of ice has a mass of 4.98 g and a volume of 5.4 mL. What would be the density of ice?

a)

0.93 g/cm3

b)

5.1 g/cm3

c)

27.4 g/cm3

6.

What mass would 4.5 cm3 of mercury have?

a)

61.2 grams

b)

0.33 grams

c)

3.0 grams

7.

When a measurement is repeatable and consistent it is said to have...

a)

High precision

b)

Low precision

c)

High accuracy

8.

Evaluate the accuracy and precision of Data Set 2.

a)

The data is accurate

b)

The data is precise

c)

The data both precise and accurate

9.

Which of the following represents an element?

a)

O=O

b)
c)

CO

10.

A smallest particle that can represent a compound is _________

a)

a molecule

b)

an atom

c)

either a molecule or an atom

11.

Which of the following is a mixture?

a)

Water

b)

Oxygen

c)

Steel

12.

Which of the following is a physical property of mercury?

a)

Both melting point and solubility are physical properties.

b)

It melts at 234 K

c)

It dissolves gold

13.

Which of the following is NOT an indicator of a chemical reaction?

a)

Metal increasing its temperature in your hand.

b)

Milk developing solid chunks and an odor.

c)

Silverware turning from silver to black.

14.

Which statement correctly describes this image?

a)

It contains two different compounds

b)

It represents a molecule of two compounds

c)

It represents a mixture of two elements

15.

All of the following would classify an element as a metal except?

a)

Dull

b)

Conductive

c)

Malleable

16.

A student is given a sample of an unknown substance. He is asked to determine if it is classified as a metal, a metalloid, or a nonmetal. He discovered that the unknown element conducted some heat and electricity, had a shiny luster, and broke easily. This element is most likely a

a)

metal

b)

nonmetal

c)

metalloid

17.

Which group of elements have the most reactive metals?

a)

Transition Metals

b)

Halogens

c)

Alkali Metals

18.

Most of the elements are considered to be these.

a)

Nonmetals

b)

Gases

c)

Metals

19.

Elements in the middle of the periodic table are known as ___

a)

Alkaline Earth Metals

b)

Transition Metals

c)

Halogens

20.

All elements in the same period have the same number of ___.

a)

Electron levels

b)

neutrons

c)

valence electrons

21.

Which element is located in Group 7 Period 4?

a)

Uranium

b)

Thorium

c)

Manganese

22.

Which particle determines the atomic number of an isotope?

a)

Protons

b)

Neutrons

c)

Electrons

23.

Which particles determines the net charge of an ion?

a)

Electrons and Protons

b)

Protons and Neutrons

c)

Neutrons and Electrons

24.

How many protons does an atom of Nitrogen-13 have?

a)

7

b)

6

c)

13

25.

How many neutrons does an atom of this isotope have?

a)

17

b)

36

c)

19

26.

Which of the following is NOT a particle emitted from a nucleus of an unstable atom?

a)
b)
c)
27.

Which nuclear process is shown in the picture?

a)

fission

b)

fusion

c)

alpha decay

28.

What is the missing isotope that will balance the following nuclear equation?

94Be + 11H → _____ + 42He

a)

105B

b)

105Ne

c)

63Li

29.

Which type of compounds are created by the loss or gain of valence electrons?

a)

Covalent compounds

b)

Ionic compounds

c)

Metallic compounds

30.

Why don't some atoms form compounds?

a)

They are lonely

b)

They have full electrons levels

c)

They want full electrons levels

31.

Which of the following elements forms ions with a (2-) charge?

a)

Magnesium

b)

Sodium

c)

Oxygen

32.

Group 1 elements form____ ions

a)

2-

b)

1+

c)

2+

33.

The chemical formula for Aluminum sulfide is

a)

Al2(SO4)3

b)

Al2S3

c)

AlS

34.

Name the following compound: CaCl2

a)

calcium dichloride

b)

calcium chloride

c)

calcium (II) chloride

35.

Choose the correct chemical name for the formula, Cu2S

a)

copper(+2)sulfide

b)

copper sulfate

c)

copper(+1)sulfide

36.

What formula results when Ca+2 and Br- ions bond?

a)

Ca2Br

b)

CaBr

c)

CaBr2

37.

How many atoms of oxygen are in Al2(CO2)3 ?

a)

3

b)

6

c)

5

38.

How many TOTAL atoms are in the compound MgCO3?

a)

3

b)

5

c)

9

39.

How many atoms of aluminum are on each side of the following equation:

4Al + 3O2 --> 2Al2 O3

a)

2

b)

6

c)

4

40.

Which is the correct chemical equation for this reaction?

a)

2 N + 6 H → 2NH6

b)

N2 + 3 H2 → 2 NH3

c)

N2 + H6 → N2H3

41.

Balance this equation.

_CF4 + _Br2 -- _CBr4 + _F2

a)

2,1,2,1

b)

1,2,2,1

c)

1,2,1,2

42.

Magnesium reacts with water to produce magnesium hydroxide and hydrogen gas. Which of the following shows the balanced chemical equation for this reaction?

a)

Mg + H2O → MgOH +2 H

b)

Mg + 2H2O → Mg(OH)2 + H2

c)

2 Mg + H2O → MgOH2 + H2

43.

The substances listed on the right side of a chemical equation are the

a)

Products

b)

Coefficients

c)

Reactants

44.

What is the molar mass of Magnesium?

a)

24.31g/mol

b)

12 g/mol

c)

24.00 g/mol

45.

What is the molar mass of ammonium sulfide - (NH4)2S?

a)

68.17 g/mol

b)

40.02 g/mol

c)

54.16 g/mol

46.

What is the molar mass of table salt (NaCl)?

a)

116.88 g/mol

b)

35.45 g/mol

c)

58.44 g/mol

47.

What is the percent composition by mass of sulfur in the compound MgSO4 ?

a)

44.3%

b)

26.6%

c)

32.1%

48.

The simplest whole-number ratio of moles of elements in the compound.

a)

Condensed formula

b)

Empirical formula

c)

Structural formula

49.

The following reaction is an example of what reaction type?

CoCO3 → CoO + CO2

a)

Synthesis

b)

Decomposition

c)

Single Replacement

50.

The following represents what reaction type? AB + CD →AD + CB

a)

Double Replacement

b)

Single Replacement

c)

Synthesis

51.

The following reaction is an example of what reaction type?

Cu + 2Ag(NO3) → 2Ag + Cu(NO3)

a)

Synthesis Reaction

b)

Double Displacement Reaction

c)

Single Displacement Reaction

52.

Which statement is FALSE about this chemical reaction?

a)

2 moles of hydrogen molecules will react with 1 mole of oxygen molecules.

b)

2 grams of hydrogen will react with 1 gram of oxygen.

c)

For every 2 moles of hydrogen molecules that react, 2 moles of water molecules will be produced.

53.

Using the following equation:

Fe2O3 + 3H2 → 2Fe + 3H2O

How many moles of iron can be made from 6 moles of hydrogen molecules?

a)

4 moles Fe

b)

6 moles Fe

c)

2 moles Fe

54.

Which unit is a mole similar to?

a)

dozen

b)

grams

c)

meters

55.

According to the following equation, how many grams of water could be created by combusting 100.5 g of ethane?

2 C2H6+ 5 O2-> 4 CO2+ 6H2O

a)

180.6 g H2O

b)

108.1 g H2O

c)

201.2 gH2O

56.

Hydrocarbons are compounds that contain

a)

Carbon, Oxygen, and Hydrogen

b)

Carbon and Hydrogen

c)

Carbon, and Oxygen

57.

Name this alkane

a)

Methane

b)

Ethane

c)

Butane

58.

Which of the following contains a double bond?

a)

C2H6

b)

C2H2

c)

C2H4

59.

Which of the following contains only carbon and hydrogen atoms?

a)

alcohols

b)

alkenes

c)

aldehydes

60.

What is the name of C5H12?

a)

Pentane

b)

Hexene

c)

Butane

61.

What is the correct name for this compound?

a)

2-methylhexane

b)

2-monoheptane

c)

1-methylheptane

62.

Which of the following is NOT an isomer of this molecule?

a)
b)

2-methylpentane

c)

C6H12

63.

How many valence electrons does carbon have?

a)

2

b)

4

c)

6

64.

How many covalent bonds do oxygen atoms form?

a)

1

b)

2

c)

3

65.

Which element can only form a single bond with an atom?

a)

Carbon

b)

Hydrogen

c)

Nitrogen

66.
The Law of Conservation of Energy states:
a)
Energy can created or destroyed but not transformed 
b)
Energy cannot be created or destroyed, it can only transformed
c)
Energy can't be created, destroyed or transformed
67.

The source of the Sun's energy is ....

a)

Nuclear energy

b)

Gravitational energy

c)

Mechanical energy

68.

Chemical energy is located in ....

a)

the nucleus of an atom.

b)

the covalent bonds of a molecule.

c)

Both A and B

69.

What does a plant convert light energy into?

a)

radiant energy

b)

gravitational energy

c)

chemical energy

70.

Energy is needed to ....

a)

form bonds

b)

break bonds

c)

break and form bonds

71.

Temperature is a measure of average______energy of individual atoms.

a)

kinetic

b)

elastic

c)

chemical

72.

As 120 g of copper piping heated to a temperature of 120.50C cools to 50.80C . How much heat did the copper lose in the process?

a)

3220 J

b)

69.7 0C

c)

8364 J/0C

73.

Which is an example of an endothermic change?

a)

Ice melting

b)

Combustion

c)

Steam condensing

74.

Which of the following is a diatomic element?

a)

Hydrogen

b)

Helium

c)

Argon

75.

According to the bond energy table, _____________________ when a mole of water is formed from its individual atoms.

a)

934 kJ is lost

b)

899 kJ is gained

c)

864 kJ is gained

76.

A gas at a volume of 4 liters is at a pressure of 2 atm. The volume is changed to 16 Liters, what must the new pressure be?

a)

2 atm

b)

12 atm

c)

0.5 atm

77.

10 L of a gas is collected at 100 K and allowed to expand to 30.0 L. What is the new temperature?

a)

400 K

b)

300 K

c)

250 K

78.

Solids are described as having a

a)

definite shape and indefinite volume

b)

indefinite shape and indefinite volume

c)

definite shape and definite volume

79.

What happens when you heat a gas?

a)

It gains mass.

b)

It decreases in temperature

c)

It increases in volume.

80.

This image demonstrates the property of ______________.A property both liquids and gases exhibit.

a)

Effusion

b)

Fluidity

c)

Compressibility

81.

Which factor does NOT affect the volume of a gas?

a)

the pressure of the gas

b)

the number of gas particles

c)

what gas it is. (Ex. Oxygen vs. Nitrogen)

82.

When 0.250 moles of a gas is placed in a container at 25 °C, it exerts a pressure of 700 mm Hg. What is the volume of the container?

a)

0.557 Liters

b)

6.64 Liters

c)

8.74 Liters

83.

If an alkane has 10 carbon atoms, how many hydrogen atoms will it have?

a)

10

b)

20

c)

22

84.

What is the condensed formula for this molecule?

a)

C8H18

b)

CH3-CH2-CH2-CH2-CH2-CH2-CH2-CH3

c)
85.

What type of solar radiation gets absorbed by greenhouse gases?

a)

Sunlight

b)

Ultraviolet

c)

Infrared

86.

What is the most abundant gas in our atmosphere?

a)

Oxygen

b)

Carbon dioxide

c)

Nitrogen

87.

Which of the following is NOT part of solar radiation that reaches the Earth?

a)

Infrared radiation

b)

Gamma radiation

c)

Visible radiation

88.

Without the greenhouse effect the Earth would ...

a)

have no atmosphere

b)

be very cold

c)

be very hot

89.

What does this picture represent?

a)

solid

b)

liquid

c)

gas

90.

To determine if a nuclear decay would occur, you should look at a ...

a)

bond energy table

b)

activity series table

c)

band of stability graph

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