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Chemistry 1 Semester 1 Review

Total questions: 42

Worksheet time: 11hrs 30mins

Name
Class
Date
1.

In what state of matter are the atoms moving the slowest?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

2.

What element is Cl

a)

Chlorine

b)

Cleaner

c)

Cleaon

d)

Sodium

3.

What is the symbol for Hydrogen?

a)

Hy

b)

He

c)

H

d)

N

4.

What type of charge does a proton have?

a)

negative

b)

postive

c)

no charge/neutral

5.

What type of charge does an electron have?

a)

positive

b)

no charge/neutral

c)

negative

6.

What two sub-atomic particles belong in the nucleus of an atom?

a)

electrons and protons

b)

protons and neutrons

c)

electrons and neutrons

7.

What type of charge does a neutron have?

a)

negative

b)

positive

c)

no charge/neutral

8.

All matter is made of what...

a)

energy

b)

atoms

c)

electrons

d)

compounds

9.
Beryllium has how many protons?
a)
4
b)
9.0122
c)
2
d)
13.0122
10.

What is the average atomic mass of sodium (Na)?

a)

11 g/mol

b)

23 g/mol

c)

1 g/mol

d)

3 g/mol

11.

What is the molar mass of CO2?

a)

22 g/mol

b)

16 g/mol

c)

32 g/mol

d)

44 g/mol

12.

How is your chemistry teacher's last name spelled?

a)

Paullus

b)

Pallus

c)

Paullaus

d)

Paulus

13.

Vaporization/ evaporation is the change of physical state from _______ to _______.

a)

gas to liquid

b)

liquid to gas

c)

solid to gas

d)

gas to solid

14.
What form of matter has a definite shape?
a)
Solid
b)
Liquid
c)
Gas
d)
Square
15.

The amount of matter something contains describes its ________.

a)

volume

b)

mass

c)

density

d)

measurement 

16.
A chemical change
a)
doesn't really change much.
b)
creates a new substance
c)
is a change in the state of matter
17.

What is Kool-aid?

a)

elements

b)

heterogenous mixture

c)

homogeneous mixture

d)

compound

18.

What is salad?

a)

homogeneous

b)

heterogenous

19.

A physical change...

a)

changes the physical properties of an object, but does not create a new substance.

b)

creates a new substance and cannot be undone.

20.
Which of the following is a chemical property of water?
a)
Reacts with pure sodium.
b)
Boils at 100 oC.
c)
Dissolves sugar easily. 
d)
Has a density of 1 gm/mL
21.
Kim puts an ice cube in a beaker and it melts. This is a good example of:
a)
a physical change.
b)
a chemical change.
c)
an experiment.
d)
an analysis.
22.
Which of the following would be a physical change?
a)
slicing bread
b)
baking bread
c)
baking a cake
d)
rotting food
23.
Which of the following is an example of a chemical change?
a)
melting chocolate
b)
crushing a soda can
c)
cutting paper
d)
wood burning
24.

How many Nitrogen atoms are in  Mg(NO3)2

a)

1

b)

2

c)

3

d)

6

25.
How many magnesium atoms in 
Mg(NO3)2
a)
1
b)
2
c)
3
d)
6
26.
How many oxygen atoms in 
Mg(NO3)2
a)
1
b)
2
c)
3
d)
6
27.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
28.
How many atoms are there TOTAL in:
H2SO4
a)
6
b)
5
c)
7
d)
3
29.

Vertical columns on the periodic table are called ___?

a)

groups

b)

periods

c)

rows

d)

families

30.

Which color on the image of the periodic table corresponds with the halogens.

a)

red

b)

black

c)

blue

d)

orange

31.

Which color on the image of the periodic table corresponds with the transition metals.

a)

red

b)

black

c)

blue

d)

orange

32.

Horizontal rows on the periodic table are called ___?

a)

groups

b)

periods

c)

rows

d)

families

33.
Different isotopes have...
a)
different masses
b)
different atomic numbers
c)
different electrons
d)
different protons
34.

How many valence electrons does Hydrogen Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

35.

How many valence electrons does Boron Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

36.

What is the correct Lewis Dot Structure for ammonia NH3

a)
b)
c)
d)
37.

Which is the correct molecular structure for carbon dioxide?

a)
b)
c)
d)
38.

Is the molecule overall polar or nonpolar?

a)

Polar

b)

Nonpolar

39.

Is the molecule overall polar or nonpolar?

a)

Polar

b)

Nonpolar

40.

Is the molecule overall polar or nonpolar?

a)

Polar

b)

Nonpolar

41.
What two types of atoms make a covalent bond?
a)
2 Nonmetals
b)
1 Nonmetal and 1 Metal
c)
2 Metals
d)
2 Noble Gases
42.

How do covalent bonds form?

a)

Donating & receiving valence electrons between atoms

b)

Oppositely charged ions attract each other & form bonds

c)

Scientists are still not sure how they form

d)

Sharing valence electrons between atoms