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General Chemistry Semester 1 Review

Total questions: 45

Worksheet time: 34mins

Name
Class
Date
1.

The amount of matter in a sample is:

a)

density.

b)

weight.

c)

volume.

d)

mass.

2.

The unit to measure of how much space matter takes up is:

a)

volume

b)

grams

c)

liters

d)

Kelvin

3.

The liquid state of matter can be described as

a)

vibrating particles in place

b)

particles that roll over one another

c)

a sea of electrons

d)

a state that is compressible

4.

A solid substance is

a)

always frozen regardless of kinetic energy

b)

is a crystal lattice

c)

maintains its shape at constant temperature

d)

always losing particles regardless of its container.

5.
Write this number in standard form: 2.34 x 103
a)
2,340
b)
23,400
c)
23.40
d)
2.340
6.
How many significant figures in the number: 98,401
a)
4
b)
5
c)
3
d)
2
7.
If you have 15 kilograms, how many grams do you have? 
a)
.0015 g
b)
15 g
c)
1,500 g
d)
15,000 g
8.

A scientific explanation for something that has been extensively tested and has a massive amount of evidence but usually cannot be witnessed is considered a(n)...

a)

law

b)

theory

c)

hypothesis

d)

observation

9.

In a controlled experiment, which group does NOT receive the independent variable and allows the comparison of results?

a)

control group

b)

experimental group

c)

dependent group

d)

variable group

10.

You measured 32.3 but your teacher said you should have got 35.0. What was your percent error?

a)

7.7%

b)

1.2%

c)

15.8%

d)

25.4%

11.

Multiply and round to the correct number of sig figs:

23.22 x 8.1

a)

188.082

b)

188

c)

190

d)

190.0

12.

Absolute zero is the temperature where...

a)

all molecular motion freezes

b)

chemical reactions can happen spontaneously

c)

it's cold enough for nuclear fusion to occur

d)

all solids and liquids become gases

13.

Things will float on water if they are...

a)

more dense

b)

less dense

c)

hotter

d)

colder

14.

This relationship is...

a)

directly proportional

b)

indirectly proportional

15.

The smallest form of an element is a(n)...

a)

atom

b)

compound

c)

molecule

d)

formula unit

16.

Which subatomic particle is equal to the atomic number?

a)

proton

b)

neutron

c)

electron

d)

valence electron

17.

The mass number will equal

a)

p + e

b)

p - n

c)

n + p

d)

n + e

18.

Which particle is not included in the mass number?

a)

proton

b)

neutron

c)

electron

d)

nucleus

19.

How many neutrons does F−17F-17 have? The atomic number is 9.

a)

9

b)

8

c)

10

d)

1

20.

How many protons does F−17F-17 have? The atomic number is 9.

a)

9

b)

8

c)

10

d)

1

21.

How many electrons does F−1F^{-1} have? The atomic number is 9.

a)

9

b)

8

c)

10

d)

1

22.

An atom has 11 protons, 12 neutrons, and 10 electrons. What is its atomic number?

a)

11

b)

23

c)

1-

d)

1+

23.

12C and 14C are both carbon, but have different masses. They are...

a)

isotopes

b)

polyatomic

c)

resonance

d)

ions

24.

NaCl(aq) is a(n)...

a)

element

b)

compound

c)

homogeneous mixture

d)

heterogeneous mixture

25.

Trail mix is a(n)...

a)

element

b)

compound

c)

homogeneous mixture

d)

heterogeneous mixture

26.

Which of these is NOT one of the 7 diatomic elements?

a)

O2

b)

F2

c)

N2

d)

S2

27.

Ionic bonds form...

a)

formula units

b)

molecules

28.

How many electrons can the 3rd shell hold?

a)

2

b)

8

c)

18

d)

32

29.

Which ion would have 10 electrons?

a)

S2-

b)

C

c)

Na 1+

d)

Br 1-

30.

Which would be found in a neutral iron atom?

a)

24 electrons

b)

26 electrons

c)

30 electrons

d)

56 electrons

31.

Which type of metal could have atoms that form ions with different charges?

a)

transition metals

b)

alkali metals

c)

alkaline earth metals

d)

basic metals

32.

Which element is in period 3, group 2?

a)

Mg

b)

Y

c)

B

d)

Li

33.

Which element has 6 valence electrons?

a)

C

b)

O

c)

N

d)

Ne

34.

According to the octet rule, most atoms want 8...

a)

valence electrons

b)

orbitals

c)

neutrons

d)

energy levels

35.

Dots in a Lewis structure represent...

a)

valence electrons

b)

atomic charge

c)

atomic number

d)

energy levels

36.

Which type of bond will form in MgO?

a)

metallic

b)

hydrogen

c)

covalent

d)

ionic

37.

Which type of bond will form in CH4?

a)

covalent

b)

metallic

c)

hydrogen

d)

ionic

38.

Which ionic compound will form between K and N?

a)

KN

b)

K3N

c)

KN3

d)

KN2

39.

Which ionic compound will form between Ni2+ and PO43- ?

a)

NiPO4

b)

Ni2PO4

c)

Ni3PO8

d)

Ni3(PO4)2

40.

CaO

a)

calcium oxide

b)

calcium (II) oxide

c)

calcium monoxide

d)

monocalcium monoxide

41.

CuCl

a)

copper chloride

b)

copper (I) chloride

c)

copper monochloride

d)

copper chlorite

42.

An insoluble chemical is produced when two solutions are mixed. This is called a(n)...

a)

hydrophilic substance

b)

precipitate

c)

aqueous solution

d)

catalyst

43.

Calculate the mass of N2O5.

a)

7 amu

b)

30 amu

c)

54 amu

d)

108 amu

44.

An ionic compound is commonly called:

a)

a sugar

b)

a salt

c)

a molecule

d)

an element

45.

Group 7A elements are

a)

alkali metals

b)

alkaline earth metals

c)

noble gases

d)

halogens

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