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Chemisty EXAM Review

Total questions: 67

Worksheet time: 5hrs 26mins

Name
Class
Date
1.

Consider the following and determine which situation is an example of a chemical change?

a)

placing table sugar in water, dissolving it and bringing the liquid to a boil

b)

taking the top off of a can of gasoline and allowing it to evaporate

c)

adding baking soda to vinegar in an attempt to make a small erupting "volcano" of foam

d)

adding ice to tea and allowing it to melt

2.

Which of the following properties would sulfur have?

a)

brittle

b)

malleable

c)

ductile

d)

conductive

e)

tenacious

3.

Which of the following would you classify as a heterogenous mixture?

a)

Vegetable oil

b)

Gatorade

c)

Salsa

d)

bottled water

e)

sulfur

4.

Which of the following is considered to be a compound?

a)

concrete

b)

table sugar

c)

a multivitamin

d)

air

e)

silver

5.

Which of the following is considered a physical change?

a)

rusting iron

b)

shredding paper

c)

dyeing hair

d)

burning of gasoline

e)

tarnishing silver

6.

Which of the following would you consider to be a homogenous mixture?

a)

gold

b)

water

c)

salsa

d)

table salt

e)

steel

7.

Which of the following would be classified as an element?

a)

milk

b)

air

c)

carbon dioxide

d)

water

e)

helium

8.

The amount of product a student was suppose to produce, as calculated ahead of time, is termed the:

a)

percent yield

b)

actual yield

c)

theoretical yield

d)

result

9.

Which of the following statement is true?

a)

mass and weight are exactly the same thing

b)

your mass changes constantly but your weight does not

c)

your weight is the result of the pull of gravity and does not change your mass

d)

mass in only changed when changing from high altitudes to low altutudes

10.

Which of the following is not a correct statement according to Dalton's Atomic Theory as originally stated in 1808?

a)

atoms of different elements can combine in simple, whole-number ratios to form compounds

b)

all matter is composed of very large and round particles called atoms

c)

in chemical reactions, atoms of different elements can combine, separate or rearrange to form chemical compounds

d)

atoms cannot be subdivided, created, and destroyed

e)

atoms of a given element are identical in size, mass, and other properties and they are different from atoms of other elements

11.

Which of the following scientists discovered the presence of the electron using a cathode ray tube and determined its charge?

a)

Rutherford

b)

Bohr

c)

Thomson

d)

Milikan

e)

Avogadro

12.

Which of the following was the correct assumption regarding the Gold-foil experiment?

a)

electrons travel around the nucleus like the planets orbit the sun

b)

electrons are negatively charged

c)

the nucleus is very small compared to the energy levels and positively charged

d)

a mist of oil will slow electrons down long enough so that their mass can be compared to hydrogen

e)

one mole of a substance has the same number of particles

13.

What is the identity of the element represented by [Ar]4s 3d4

a)

Chromium

b)

Iron

c)

Cobalt

d)

Nickel

14.

Which of the following pairs of element would be the most likely to form a covalent bond with one another?

a)

Nickel and chlorine

b)

Chlorine and fluorine

c)

Zinc and chlorine

d)

Zinc and oxygen

15.

Given: 1s22s22p63s23p64s23d7 What is the identity of the given element?

a)

Nickel

b)

Chromium

c)

Cobalt

d)

Iron

16.

A peice of paper soaked in salt water that allows ions to flow but does not allow two solutions to mix is called a(an):

a)

buffer

b)

salt bridge

c)

electrolytic cell

d)

cathode

17.

Which of the following statements is true?

a)

protons and neutrons have approximately the same mass while the electron is lighter

b)

protons an electrons have approximately the same mass while the neutron has no mass at all

c)

protons and electrons have approximately the same mass while the neutron is lighter

d)

the proton, neutron, and electron all have the same mass

18.

Which of the following elements has a mass number of 40?

a)

zirconium

b)

calcium

c)

vanadium

d)

tungsten

e)

phosphorus

19.

How many neutrons does uranium-238 have?

a)

146

b)

92

c)

142

d)

238.03

e)

none of these is correct for this element

20.

Which of the following is/are true when considering the electromagnetic spectrum?

I. When wavelengths are short, energy is high

II. When frequency is high, energy is high

III. When wavelengths are long, energy is high

IV. When frequency is low, energy is high

a)

I only

b)

II and III only

c)

I and IV only

d)

I and II only

e)

III and IV only

21.

Which of the following is not a correct statement of Bohr's model of the hydrogen atom?

a)

electrons travel around the nucleus as the planets orbit the sun

b)

electrons travel in fixed paths or orbitals a certain distance from the nucleus

c)

if an electron changes energy levels, there is a quantum energy change

d)

when electrons drop from a higher to lower energy level, they emit energy in the form of a photon

e)

when electrons return to their normal energy levels, they give off high levels of radiation

22.

Which of the following pairs of elements would be the most likely to form an ionic bond?

a)

calcium and copper

b)

carbon and nitrogen

c)

calcuim and nitrogen

d)

neon and chlorine

23.

An atom with 16 protons and 17 neutrons would be an isotope of which element?

a)

arsenic

b)

titanium

c)

yttrium

d)

sulfur

e)

chlorine

24.

Which group of elements are the most active nonmetals all having 7 valence electrons?

a)

alkali metals

b)

halogens

c)

noble gases

d)

alkaline earth metals

e)

transition metals

25.

Which of the following groups is considered electronically perfect?

a)

alkali metals

b)

halogens

c)

transition metals

d)

alkaline earth metals

e)

noble gases

26.

The maximum number of electrons that the "d" sublevel can hold is:

a)

2

b)

6

c)

10

d)

14

e)

18

27.

Which of the following elements can be found in the "p" block?

a)

potassium

b)

sodium

c)

selenium

d)

chromium

28.

Which of the following elements is a member of the halogens?

a)

bromine

b)

calcium

c)

potassium

d)

iron

e)

carbon

29.

How many valence elecrtrons does sulfur have?

a)

8

b)

7

c)

6

d)

5

e)

4

30.

Which of the following elements is a noble gas?

a)

oxygen

b)

chlorine

c)

argon

d)

nitrogen

31.

Which of the following elements is a "d" block element?

a)

calcium

b)

silicon

c)

aluminum

d)

chlorine

e)

titanium

32.

Which of these quantum numbers will tell you the size of an atom?

a)

principle

b)

magnetic

c)

azimuthal

d)

spin

33.

Which of the following quantum number represents the direction in which the electrons are traveling and can also represent the electrons with arrows or +1/2, -1/2?

a)

azimuthal

b)

magnetic

c)

principle

d)

spin

34.

Which of the following is a statement of Hund's rule?

a)

electrons have wavelike behaviors and have certain frequencies

b)

electrons remain unpaired as long as possible before pairing due to their like charges

c)

It is impossible to determain both the speed and locations of an electrons at the same time

d)

elements show periodic repetition of properties

35.

Which of the possible answers would describe Heisenberg Principle?

a)

electrons have wavelike behaviors and have certain frequencies

b)

electrons remain unpaired as long as possible before pairing due to their like charges

c)

it is impossible to determine both the speed and location of an electron at the same time

d)

elements show periodic repetition of properties

36.

Which of the possible answers would describe Henry Moseley's work?

a)

electrons have wavelike behaviors and have certain frequencies

b)

electrons remain unpaired as long as possible before pairing due to their like charges

c)

it is impossible to determine both the speed and location of an electron at the same time

d)

elements show periodic repetition of properties

37.

Which of the possible answers would describe DeBroglie's work?

a)

electrons have wavelike behaviors and have certain frequencies

b)

electrons remain inpaired as long as possible before pairing due to their like charges

c)

it is impossible to determine both the speed and location of an electron at the same time

d)

elements show periodic repetition of properties

38.

How many energy levels would you need to draw to accurately represent the element tin?

a)

2

b)

3

c)

4

d)

5

e)

6

39.

Which of the following elements is a member of the transition elements?

a)

cesium

b)

calcium

c)

carbon

d)

copper

40.

Which of the following is a member of the alkali metals:

a)

calcuim

b)

nickel

c)

zinc

d)

sodium

e)

copper

41.

How many valence electrons does calcium have?

a)

1

b)

2

c)

3

d)

4

e)

5

42.

Which of the following pairs of element would be the most likely to form a covalent bond?

a)

gold and chlorine

b)

calcium and magnesium

c)

carbon and chlorine

d)

zinc and oxygen

43.

Which of the following statements is attributed to Max Planck?

a)

electrons travel a specific distance from the nucleus like planets orbiting the sun

b)

stated that electrons had wave-like properties and have specific frequencies

c)

stated that particles stream, and each particle of light carried a quantum of energy

d)

hot objects when subjected to energy such as sunlight, emit that energy in specific amounts called quanta

e)

stated that electrons have both wavelike properties and particle properties and developed an equation that treated electrons in atoms as waves

44.

Which of these is attributed to Erwin Schrodinger?

a)

electrons travel a specific distance from the nucleus like planets orbiting the sun

b)

stated that electrons had wave-like properties and have specific frequencies

c)

stated that particles stream, and each particle of light carried a quantum of energy

d)

hot objects when subjected to energy such as sunlight, emit that energy in specific amounts called quanta

e)

stated that electrons have both wavelike properties and particle properties and developed an equation that treated electrons in atoms as waves

45.

Which of these is attributed to Einstein?

a)

electrons travel a specific distance from the nucleus like planets orbiting the sun

b)

stated that electrons had wave-like properties and have specific frequencies

c)

stated that particles stream, and each particle of light carried a quantum of energy

d)

hot objects when subjected to energy such as sunlight, emit that energy in specific amounts called quanta

e)

stated that electrons have both wavelike properties and particle properties and developed an equation that treated electrons in atoms as waves

46.

Which of these is attributed to Bohr?

a)

electrons travel a specific distance from the nucleus like planets orbiting the sun

b)

stated that electrons had wave-like properties and have specific frequencies

c)

stated that particles stream, and each particle of light carried a quantum of energy

d)

hot objects when subjected to energy such as sunlight, emit that energy in specific amounts called quanta

e)

stated that electrons have both wavelike properties and particle properties and developed an equation that treated electrons in atoms as waves

47.

Which of the following properties, in general, increase as you move from left to right across the periodic table in a period?

I. Electronegativity

II. Metallic Characteristics

III. Ionization energy

a)

I only

b)

II only

c)

III only

d)

I and III only

e)

I, II and III

48.

Which of the following groups of elements are found in many naturally occurring compounds such as marble and seashells?

a)

alkali metals

b)

halogens

c)

noble gases

d)

alkaline earth metals

e)

transitional metals

49.

Which of the following types of intermolecular forces is found between polar molecules only and has a short-range and produces compounds with very high boiling points?

a)

dipole-dipole

b)

hydrogen

c)

London dispersion

d)

dispersion interaction

50.

Which of the following types of intermolecular forces is/are found between hydrogen and a very electronegative element?

a)

hydrogen

b)

dipole-dipole

c)

London dispersion

d)

dispersion interaction

51.

Which is the correct name for Cu(NO2)2

a)

copper nitrate

b)

cupric nitrate

c)

cuprous nitrate

d)

cupric nitrite

e)

cuprous nitride

52.

What is the name for the compound C3O4

a)

trichromium tetroxide

b)

tricarbon tetraoxide

c)

carbon tetroxide

d)

oxalate

53.

Which of the following is the correct formula for carbon disulfide?

a)

C2S

b)

CS

c)

CS2

d)

CaS

54.

Which of the following is calcium phosphate?

a)

Ca3(PO4)2

b)

Ca3P2

c)

Ca3(PO4)

d)

CaP

55.

What is the name for Co2(SO4)3

a)

cobalt sulfate

b)

cobalt sulfite

c)

cobalt II sulfate

d)

cobalt III sulfate

e)

cobalt III sulfite

56.

The law of multiple proportions states:

a)

Matter is neither created or destroyed

b)

The elemental composition of a pure source is always the same, regardless of the source

c)

When two elements combine, they do so in ratios of small whole numbers with a fixed weight

d)

Isotopes are two elements chemically combined

57.

Which of the following is the correct chemical formula for phosphoric acid?

a)

H3P

b)

H3(PO3)

c)

H3(PO4)

d)

H(PO4)

e)

H(PO3)

58.

Which of the following is the correct chemical formula for carbon tetrachloride?

a)

CCI

b)

C4CI

c)

C2CI4

d)

CCI4

e)

C4CI2

59.

Which of the following is the correct chemical formula for ferrous sulfide?

a)

FeS

b)

Fe2S3

c)

Fe(SO4)

d)

Fe2(SO4)3

60.

Which of the following is the correct chemical formula for ammonium phosphite?

a)

(NH4)3P

b)

(NH4)3(PO3)3

c)

Al(PO3)

d)

(NH4)3(PO3)

e)

Al3(PO4)3

61.

Which of the following is the correct name for Na2(Cr2O7)

a)

sodium dichromate

b)

disodium dichromium heptoxide

c)

sodium chromate

d)

disodium dichromate

62.

Which of the following os the correct name for HNO2

a)

nitrous acid

b)

nitric acid

c)

hydronitrous acid

d)

hydronitric acid

63.

Which of the following is the correct formula for lithium sulfite?

a)

Li2S

b)

Li2(SO2)

c)

Li2(SO3)

d)

Li2(SO4)

64.

Which of the following is sulfuric acid?

a)

H2S

b)

H2SO3

c)

H2SO4

d)

H2SeO4

65.

"Matter cannot be created or destroyed," is a statement of...

a)

the law of chemical composition

b)

the law of definite composition

c)

the law of multiple proportions

d)

the law of conservation of mass

66.

Which of the following types of intermolecular forces produces an instantaneous dipole due to a constant swirl of electrons whose forces get stronger as the molecule increases in weight,

a)

london dispersion

b)

hydrogen

c)

dipole-dipole

d)

dispersion interaction

67.

Which of the following is a member of the alkaline earth metals?

a)

potassium

b)

calcium

c)

silver

d)

zinc

e)

fluorine

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