Free Printable CHEM 01 - Summative Test 1

1.

The photoelectric effect is _____________.

a)

The total reflection of light by metals giving them their typical luster

b)

The production of current by silicon solar cells when exposed to sunlight

c)

The ejection of electrons by a metal when struck with light of sufficient energy

d)

The darkening of photographic film when exposed to an electric field

2.

A combination of sand, salt and water is an example of ______________.

a)

Homogeneous mixture

b)

Heterogeneous mixture

c)

Compound

d)

Pure substance

3.

Which pair of substances could be used to illustrate the law of multiple proportions?

a)

$SO_{2\ },\ H_{2\ }SO_{4\ }$

b)

$CO,\ CO_{2\ }$

c)

$H_2O\ ,\ O_{2\ }$

d)

$CH_{4\ },\ C_{6\ }H_{12\ }O_{6\ }$

4.

Which one of the following is often separated into its components by simple techniques such as filtering or decanting?

a)

Heterogeneous mixture

b)

Compounds

c)

Homogeneous mixture

d)

Elements

e)

Solutions

5.

The gold foil experiment performed in Rutherford's lab _____________.

a)

confirmed the plum-pudding model of the atom.

b)

led to the discovery of the atomic nucleus.

c)

was the basis for Thomson's model of the atom.

d)

utilized the deflection of beta particles by gold foil.

e)

proved the law of multiple proportions.

6.

The angular momentum quantum number (l) denotes the _________.

a)

shape of the orbital

b)

energy level where electrons reside

c)

different orientation of orbitals

d)

spin of the electron

7.

The charge on on an electron was determined in the _____.

a)

cathode ray tube by J. J. Thomson.

b)

Rutherford gold foil experiment

c)

Millikan oil drop experiment

d)

Dalton atomic theory

e)

Atomic theory of matter

8.

According to the the Heisenberg Uncertainty Principle, it is impossible to know precisely both the position and the ________ of an electron.

a)

mass

b)

color

c)

momentum

d)

shape

e)

charge

9.

If matter is uniform throughout and cannot be separated into other substances by physical means, it is ________.

a)

compound

b)

either an element or a compound

c)

a homogeneous mixture

d)

a heterogeneous mixture

e)

an element.

10.

Which of the following are chemical processes?

1. rusting of a nail

2. freezing of water

3. decomposition of water into hydrogen and oxygen gases

4. compression of oxygen gas

a)

2, 3, 4

b)

1, 3, 4

c)

1, 3

d)

1, 2

e)

1, 4

11.

The ions $Ca^{2+}$ and $PO_4^{3-}$ form a salt with a formula ______.

a)

$CaPO_4$

b)

$Ca_2\left(PO_4\right)_3$

c)

$Ca_2PO_4$

d)

$Ca\left(PO_4\right)_2$

e)

$Ca_3\left(PO_4\right)_2$

12.

Which one of the following is not a valid value for the magnetic quantum number of an electron in a 5d subshell?

a)

2

b)

3

c)

0

d)

1

e)

-1

13.

Which of the following is not a valid set of four quantum numbers? (n, l, $m_l$ , $m_s$ )

a)

2, 0, 0, +1/2

b)

2, 1, 0, -1/2

c)

3, 1, -1, -1/2

d)

1, 0, 0, +1/2

e)

1, 1, 0, +1/2

14.

There are ________ protons, ________ electrons, and ________ neutrons in an atom of $Xe_{54}^{129}$ .

a)

129, 129, 129

b)

129, 129, 75

c)

54, 75, 129

d)

54, 54, 75

e)

54, 54, 129

15.

Homogeneous mixtures are also known as ________.

a)

solids

b)

compounds

c)

elements

d)

substances

e)

solutions

16.

In the following list, only ________ is not an example of a chemical reaction.

a)

dissolution of a penny in nitric acid

b)

the condensation of water vapor

c)

a burning candle

d)

the formation of polyethylene from ethylene

e)

the rusting of iron

17.

In the symbol below, X = ________.

$X_{19}^{40}$

a)

Zr

b)

K

c)

Sc

d)

Br

e)

Not enough information to determine

18.

Which electron configuration represents a violation of the Pauli exclusion principle?

a)

b)

c)

d)

e)

19.

How many neutrons are there in one atom of $W^{184}$ ?

a)

74

b)

112

c)

258

d)

110

e)

184

20.

For which of the following can the composition vary?

a)

pure substance

b)

element

c)

both homogeneous and heterogeneous mixtures

d)

homogeneous mixtures

e)

heterogeneous mixtures

21.

The ground-state electron configuration of the element ________ is $\left[Kr\right]5s^14d^5$ .

a)

Nb

b)

Mo

c)

Cr

d)

Mn

e)

Tc

22.

Which one of the following has the element name and symbol correctly matched?

a)

S, sodium

b)

Tn, tin

c)

Fe, iron

d)

N, neon

e)

B, bromine

23.

The name of the ionic compound $V_2O_3$ is ________.

a)

vanadium (III) oxide

b)

vanadium oxide

c)

vanadium (II) oxide

d)

vanadium (III) trioxide

e)

divanadium trioxide

24.

Which electron configuration represents a violation of Hund's rule for an atom in its ground state?

a)

b)

c)

d)

e)

25.

Which one of the following is a pure substance?

a)

tap water

b)

rock

c)

air

d)

elemental oxygen

e)

apple

26.

The correct name for $HIO_2$ is ________.

a)

hypoiodic acid

b)

hydrioic acid

c)

periodous acid

d)

iodous acid

e)

periodic acid

27.

The ground state electron configuration of Ga is ________.

a)

$1s^22s^23s^23p^64s^23d^{10}4p^1$

b)

$1s^22s^22p^63s^23p^64s^24d^{10}4p^1$

c)

$1s^22s^22p^63s^23p^64s^23d^{10}4p^1$

d)

$1s^22s^22p^63s^23p^64s^23d^{10}4d^1$

e)

$[Ar]4s^23d^{11}$

28.

An element cannot ________.

a)

be part of a heterogeneous mixture

b)

be part of a homogeneous mixture

c)

be separated into other substances by chemical means

d)

interact with other elements to form compounds

e)

be a pure substance

29.

Horizontal rows of the periodic table are known as ________.

a)

periods

b)

groups

c)

metalloids

d)

metals

e)

nonmetals

30.

All of the _____ have a valence shell electron configuration $ns^1$ .

a)

noble gases

b)

halogens

c)

chalcogens

d)

alkali metals

31.

Gases and liquids share the property of ______.

a)

compressibility

b)

definite volume

c)

incompressibility

d)

indefinite shape

e)

definite shape

32.

Which of the following compounds would you expect to be ionic?

a)

$C_2H_6$

b)

$NH_3$

c)

$H_2O_2$

d)

$LiBr$

e)

None of the above

33.

The elements in the ____ period of the periodic table have a core-electron configuration that is the same as the electron configuration of Neon [Ne].

a)

first

b)

second

c)

third

d)

fourth

e)

fifth

34.

In the following list, only _____ is not an example of a chemical reaction.

a)

burning a plastic water bottle

b)

the production of hydrogen gas from water

c)

the tarnishing of a copper penny

d)

chopping a log into sawdust

e)

charging a cellular phone

35.

The charge on the copper ion in the salt CuO is _____.

a)

+1

b)

+2

c)

+4

d)

+3

e)

+5

36.

If an electron has a principal quantum number (n) of 7 and an angular momentum quantum number (l) of 3, the subshell designation is ________.

a)

7f

b)

7s

c)

7p

d)

3f

e)

3d

37.

If matter is uniform throughout and cannot be separated into other substances by physical processes, but can be decomposed into other substances by chemical processes, it is called a(n) _____.

a)

heterogeneous mixture

b)

element

c)

homogeneous mixture

d)

compound

e)

mixture of elements

38.

The correct name for $Na_2O_2$ is ______.

a)

sodium oxide

b)

sodium dioxide

c)

disodium dioxide

d)

sodium peroxide

e)

disodium oxide

39.

At maximum, a d-subshell can hold ______ electrons.

a)

10

b)

6

c)

2

d)

8

e)

14

40.

The law of constant composition says ______.

a)

that the composition of a compound is always the same

b)

that all substances have the same composition

c)

that the composition of an element is always the same

d)

that the composition of a homogeneous mixture is always the same

e)

that the composition of a heterogeneous mixture is always the same

41.

Which metal is not required to have its charge specified in the names of ionic compounds it forms?

a)

Cr

b)

Ni

c)

Zr

d)

Na

e)

Mo

42.

Which set of three quantum numbers (n, l, $m_l$ ) corresponds to a 4s orbital?

a)

4, 0, 1

b)

4, 0, 2

c)

4, 0, 0

d)

4, 1, 0

e)

4, 1, 1

43.

Which of the following is an intensive property?

a)

mass

b)

temperature

c)

length

d)

volume

e)

amount

44.

Which one of the following polyatomic ions has the same charge as the hydroxide ion?

a)

ammonium

b)

carbonate

c)

nitrate

d)

sulfate

e)

phosphate

45.

The ground state configuration of tungsten is _______.

a)

$\left[Ar\right]4s^23d^3$

b)

$\left[Xe\right]6s^24f^{14}5d^4$

c)

$\left[Ne\right]3s^1$

d)

$\left[Xe\right]6s^24f^7$

e)

$\left[Kr\right]5s^24d^{10}5p^5$

CHEM 01 - Summative Test 1

Total questions: 45

Worksheet time: 1hrs 17mins

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