Quiz about Chemistry Quiz

Question 1

The study of chemicals that, in general, do not contain carbon is traditionally called what type of chemistry?

Accepted Answer

inorganic

Answer

bio

Answer

physical

Answer

analytical

Question 2

Which of the following is NOT an example of matter?

Accepted Answer

heat

Answer

air

Answer

smoke

Answer

water vapor

Question 3

A golf ball has more mass than a tennis ball because it ____.

Accepted Answer

contains more matter

Answer

takes up more space

Answer

contains different kinds of matter

Answer

has a definite composition

Question 4

All of the following are physical properties of matter EXCEPT ____.

Accepted Answer

ability to rust

Answer

mass

Answer

color

Answer

melting point

Question 5

Which state of matter has a definite volume and takes the shape of its container?

Accepted Answer

liquid

Answer

solid

Answer

gas

Answer

both b and c

Question 6

Which of the following CANNOT be classified as a substance?

Accepted Answer

air

Answer

table salt

Answer

nitrogen

Answer

gold

Question 7

Which of the following is a heterogeneous mixture?

Accepted Answer

soil

Answer

air

Answer

salt water

Answer

steel

Question 8

Separating a solid from a liquid by evaporating the liquid is called ____.

Accepted Answer

distillation

Answer

filtration

Answer

condensation

Answer

solution

Question 9

A substance that can be separated into two or more substances only by a chemical change is a(n) ____.

Accepted Answer

compound

Answer

solution

Answer

element

Answer

mixture

Question 10

The chemical symbol for iron is ____.

Accepted Answer

Fe

Answer

fe

Question 11

Which of the following is a chemical property?

Accepted Answer

ability to react with oxygen

Answer

color

Answer

hardness

Answer

freezing point

Question 12

Which of the following is NOT a physical change?

Accepted Answer

fermenting of cheese

Answer

grating cheese

Answer

melting cheese

Answer

mixing two cheeses in a bowl

Question 13

Which of the following does NOT involve a physical change?

Accepted Answer

decomposing

Answer

mixing

Answer

melting

Answer

grinding

Question 14

A chemical change occurs when a piece of wood ____.

Accepted Answer

decays

Answer

is split

Answer

is painted

Answer

is cut

Question 15

When an iron nail is ground into powder, its mass ____.

Accepted Answer

stays the same

Answer

decreases

Answer

increases

Answer

cannot be determined

Question 16

The closeness of a measurement to its true value is a measure of its ____.

Accepted Answer

accuracy

Answer

precision

Answer

reproducibility

Answer

usefulness

Question 17

As the density of a substance increases, the volume of a given mass of that substance ____.

Accepted Answer

decreases

Answer

increases

Answer

is not affected

Answer

fluctuates

Question 18

The smallest particle of an element that retains the properties of that element is a(n) ____.

Accepted Answer

atom

Answer

electron

Answer

proton

Answer

neutron

Question 19

Which of the following is NOT a part of Dalton's atomic theory?

Accepted Answer

Atoms are always in motion.

Answer

All elements are composed of atoms.

Answer

Atoms of the same element are identical.

Question 20

Which of the following is true about subatomic particles?

Accepted Answer

The mass of a neutron nearly equals the mass of a proton.

Answer

Electrons are negatively charged and are the heaviest subatomic particle.

Answer

Protons are positively charged and the lightest subatomic particle.

Answer

Neutrons have no charge and are the lightest subatomic particle.

Question 21

All atoms are ____.

Accepted Answer

neutral, with the number of protons equaling the number of electrons

Answer

positively charged, with the number of protons exceeding the number of electrons

Answer

negatively charged, with the number of electrons exceeding the number of protons

Answer

neutral, with the number of protons equaling the number of electrons, which is equal to the number of neutrons

Question 22

The particles that are found in the nucleus of an atom are ____.

Accepted Answer

protons and neutrons

Answer

neutrons and electrons

Answer

electrons only

Answer

protons and electrons

Question 23

As a consequence of the discovery of the nucleus by Rutherford, which model of the atom is thought to be true?

Accepted Answer

Electrons are distributed around the nucleus and occupy almost all the volume of the atom.

Answer

Protons, electrons, and neutrons are evenly distributed throughout the volume of the atom.

Answer

The nucleus is made of protons, electrons, and neutrons.

Answer

The nucleus is made of electrons and protons.

Question 24

The nucleus of an atom is ____.

Accepted Answer

the central core and is composed of protons and neutrons

Answer

positively charged and has more protons than neutrons

Answer

negatively charged and has a high density

Answer

negatively charged and has a low density

Question 25

The atomic number of an element is the total number of which particles in the nucleus?

Accepted Answer

protons

Answer

neutrons

Answer

electrons

Answer

protons and electrons

Question 26

An element has an atomic number of 76. The number of protons and electrons in a neutral atom of the element are ____.

Accepted Answer

76 protons and 76 electrons

Answer

152 protons and 76 electrons

Answer

76 protons and 0 electrons

Answer

38 protons and 38 electrons

Question 27

The sum of the protons and neutrons in an atom equals the ____.

Accepted Answer

mass number

Answer

atomic number

Answer

nucleus number

Answer

atomic mass

Question 28

What does the number 84 in the name krypton-84 represent?

Accepted Answer

the mass number

Answer

the atomic number

Answer

the sum of the protons and electrons

Answer

twice the number of protons

Question 29

All atoms of the same element have the same ___.

Accepted Answer

number of protons

Answer

number of neutrons

Answer

mass numbers

Answer

mass

Question 30

Isotopes of the same element have different ____.

Accepted Answer

numbers of neutrons

Answer

numbers of protons

Answer

numbers of electrons

Answer

atomic numbers

Question 31

The mass number of an element is equal to ____.

Accepted Answer

the total number of protons and neutrons in the nucleus

Answer

the total number of electrons in the nucleus

Answer

less than twice the atomic number

Answer

a constant number for the lighter elements

Question 32

What unit is used to measure weighted average atomic mass?

Accepted Answer

amu

Answer

gram

Answer

angstrom

Answer

nanogram

Question 33

In the Bohr model of the atom, an electron in an orbit has a fixed ____.

Accepted Answer

size

Answer

position

Answer

color

Answer

energy

Question 34

How does the energy of an electron change when the electron moves closer to the nucleus?

Accepted Answer

It decreases.

Answer

It increases.

Answer

It stays the same.

Answer

It doubles.

Question 35

What is the shape of the 3p atomic orbital?

Accepted Answer

dumbbell

Answer

sphere

Answer

bar

Answer

two perpendicular dumbbells

Question 36

How many energy sublevels are in the second principal energy level?

Accepted Answer

2

Answer

1

Answer

3

Answer

4

Question 37

What is the maximum number of d orbitals in a principal energy level?

Accepted Answer

5

Answer

1

Answer

2

Answer

3

Question 38

The shape (not the size) of an electron cloud is determined by the electron's ____.

Accepted Answer

energy sublevel

Answer

position

Answer

speed

Answer

principal quantum number

Question 39

What is the next atomic orbital in the series 1s, 2s, 2p, 3s, 3p?

Accepted Answer

3d

Answer

2d

Answer

3f

Answer

4s

Question 40

According to the aufbau principle, ____.

Accepted Answer

electrons enter orbitals of lowest energy first

Answer

an orbital may be occupied by only two electrons

Answer

electrons in the same orbital must have opposite spins

Answer

electrons enter orbitals of highest energy first

Question 41

How many unpaired electrons are in a sulfur atom (atomic number 16)?

Accepted Answer

2

Answer

0

Answer

1

Answer

3

Question 42

How does the speed of visible light compare with the speed of gamma rays, when both speeds are measured in a vacuum?

Accepted Answer

The speeds are the same.

Answer

The speed of visible light is greater.

Answer

The speed of gamma rays is greater.

Answer

No answer can be determined from the information given.

Question 43

Which color of visible light has the shortest wavelength?

Accepted Answer

violet

Answer

yellow

Answer

green

Answer

blue

Question 44

Which of the following electromagnetic waves have the highest frequencies?

Accepted Answer

gamma rays

Answer

ultraviolet light waves

Answer

X-rays

Answer

microwaves

Question 45

How are the frequency and wavelength of light related?

Accepted Answer

They are inversely proportional to each other.

Answer

Frequency equals wavelength divided by the speed of light.

Answer

Wavelength is determined by dividing frequency by the speed of light.

Answer

They are directly proportional to each other.

Question 46

The light given off by an electric discharge through sodium vapor is ____.

Accepted Answer

an emission spectrum

Answer

a continuous spectrum

Answer

of a single wavelength

Answer

white light

Question 47

Which scientist developed the quantum mechanical model of the atom?

Accepted Answer

Niels Bohr

Answer

Albert Einstein

Question 48

According to the Heisenberg uncertainty principle, if the position of a moving particle is known, what other quantity CANNOT be known?

Accepted Answer

velocity

Answer

mass

Answer

charge

Answer

spin

Question 49

What is another name for the representative elements?

Accepted Answer

Group A elements

Answer

Group B elements

Answer

Group C elements

Answer

transition elements

Question 50

What is another name for the transition metals?

Accepted Answer

Group B elements

Answer

noble gases

Answer

Group A elements

Answer

Group C elements

Question 51

Which of the following elements is in the same period as phosphorus?

Accepted Answer

magnesium

Answer

carbon

Answer

nitrogen

Answer

oxygen

Question 52

Each period in the periodic table corresponds to ____.

Accepted Answer

a principal energy level

Answer

an energy sublevel

Answer

an orbital

Answer

a suborbital

Question 53

The modern periodic table is arranged in order of increasing atomic ____.

Accepted Answer

number

Answer

mass

Answer

charge

Answer

radius

Question 54

Of the elements Pt, V, Li, and Kr, which is a nonmetal?

Accepted Answer

Kr

Answer

Pt

Answer

V

Answer

Li

Question 55

To what category of elements does an element belong if it is a poor conductor of electricity?

Accepted Answer

nonmetals

Answer

transition elements

Answer

metalloids

Answer

metals

Question 56

Elements that are characterized by the filling of p orbitals are classified as ____.

Accepted Answer

groups 3A through 8A

Answer

transition metals

Answer

inner transition metals

Answer

groups 1A and 2A

Question 57

Which subatomic particle plays the greatest part in determining the properties of an element?

Accepted Answer

electron

Answer

proton

Answer

neutron

Answer

none of the above

Question 58

Which of the following elements is a transition metal?

Accepted Answer

copper

Answer

cesium

Answer

tellurium

Answer

tin

Question 59

How does atomic radius change from top to bottom in a group in the periodic table?

Accepted Answer

It tends to increase.

Answer

It tends to decrease.

Answer

It first increases, then decreases.

Answer

It first decreases, then increases.

Question 60

How does atomic radius change from left to right across a period in the periodic table?

Accepted Answer

It tends to decrease.

Answer

It tends to increase.

Answer

It first increases, then decreases.

Answer

It first decreases, then increases.

Question 61

Atomic size generally ____.

Accepted Answer

decreases as you move from left to right across a period

Answer

increases as you move from left to right across a period

Answer

decreases as you move from top to bottom within a group

Answer

remains constant within a period

Question 62

What element in the second period has the largest atomic radius?

Accepted Answer

lithium

Answer

carbon

Answer

potassium

Answer

neon

Question 63

Which of the following elements has the smallest atomic radius?

Accepted Answer

chlorine

Answer

sulfur

Answer

selenium

Answer

bromine

Question 64

What is the charge of a cation?

Accepted Answer

a positive charge

Answer

no charge

Answer

a negative charge

Answer

The charge depends on the size of the nucleus.

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