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Q1 Exam Review

Total questions: 57

Worksheet time: 2hrs 44mins

Name
Class
Date
1.

How many total atoms are in 2H2O

a)

2

b)

4

c)

6

d)

8

2.

How many atoms are in 3KN4

a)

3

b)

5

c)

10

d)

15

3.

How many just Sodium (Na) atoms are in 3NaC3P4

a)

3

b)

6

c)

9

d)

12

4.

How many Just Oxygen atoms are in 3C6H12O6

a)

6

b)

12

c)

18

d)

24

5.

How many Oxygen (O) atoms are in 2Fe2O3?

a)

2

b)

3

c)

4

d)

6

6.

How many oxygen (O) atoms are in 2K2O?

a)

0

b)

1

c)

2

d)

4

7.

How many magnesium atoms are in 2MgO?

a)

0

b)

1

c)

2

d)

3

8.

How do I know there are not any F atoms in Fe2O3?

a)

By guessing

b)

By recognising the compound as iron oxide

c)

By knowing that there is not an element 'e' on the periodic table

d)

Because 'e' is in lower case so it must be with the 'F'.

9.

How many Iron (Fe) atoms are in Fe2O3?

a)

0

b)

2

c)

3

d)

5

e)

6

10.

How many atoms of carbon are in CO2?

a)

0

b)

1

c)

2

d)

3

11.

Which subatomic particles are electrically neutral (no charge)?

a)

protons

b)

ions

c)

neutrons

d)

electrons

12.

What subatomic particle(s) move outside the nucleus in shells, or orbitals?

a)

neutrons only

b)

electrons only

c)

protons and neutrons

d)

protons and electrons

13.

The positive particles of an atom are:

a)

electrons.

b)

positrons.

c)

neutrons.

d)

protons.

14.

What subatomic particle is the arrow pointing towards?

a)

Proton

b)

Neutron

c)

Electron

15.

What subatomic particle is the arrow pointing towards?

a)

Proton

b)

Neutron

c)

Electron

16.

The two subatomic particles found in the nucleus of an atom are:

a)

protons and electrons.

b)

protons and neutrons.

c)

neutrons and electrons.

17.

What subatomic particle is the arrow pointing towards?

a)

proton

b)

neutron

c)

electron

18.

Which subatomic particles make up the mass of an atom?

a)

protons only

b)

protons and neutrons

c)

protons, neutrons and electrons

d)

protons and electrons

19.

The Atomic mass of Fe

a)

55

b)

56

c)

54

d)

53

20.

The atomic mass of K

a)

35

b)

36

c)

38

d)

39

21.

The symbol for cobalt

a)

CO

b)

Cb

c)

Co

d)

cO

22.

The atomic number of Ar

a)

39

b)

40

c)

22

d)

18

23.

Look at the image. What is the atomic number for carbon?

a)

12.011

b)

6

c)

7

d)

8

24.

Look at the image. How many protons does carbon have?

a)

12.011

b)

6

c)

4

d)

5

25.

The atomic number and protons for carbon is 6. Is this true or false?

a)

true

b)

false

26.

Look at the image. What is the atomic number for oxygen?

a)

15.999

b)

16

c)

8

d)

9

27.

All of the COLUMNS on the Periodic Table are called?

a)

Periods

b)

Rows

c)

Groups

d)

Lines

28.

All of the ROWS on the Periodic Table are called what?

a)

Periods

b)

Groups

c)

Columns

d)

Lines

29.

What is the ATOMIC # (number on top) of Oxygen- O?

a)

6

b)

7

c)

8

d)

9

30.

What is the Atomic MASS / WEIGHT (number on bottom) of Lithium- Li?

a)

9.012

b)

6.94

c)

4.002

d)

1.008

31.

How many PROTONS / ELECTRONS does Potassium- K have?

a)

11

b)

19

c)

37

d)

87

32.

How many NEUTRONS (bottom number - top) does Nitrogen- N have?

a)

6

b)

7

c)

8

d)

9

33.

How many NEUTRONS (bottom - top) does Magnesium- Mg have?

a)

10

b)

11

c)

12

d)

13

34.
Elements in the same ________ are more chemically similar.
a)
group
b)
period
c)
club
d)
table
35.

Which is a physical property?

a)

flammability

b)

reactivity

c)

color

36.

Which is a chemical property

a)

melting point

b)

reactivity

c)

boiling point

d)

malleability

37.

Two or more different atoms that are chemically combined form a (a)   .

38.

Pure substances cannot be broken down into anything simpler.

a)

TRUE

b)

FALSE

39.

A varied number of one or more kinds of atom bonded together in a large network is called a(n) ____.

a)

Molecule

b)

Compound

c)

Extended Structure

d)

Life Cycle

40.

Salt and diamond are examples of extended structures.

a)

True

b)

False

41.

Sulfur is an example of an extended structure.

a)

TRUE

b)

FALSE

42.

This is an example of a(n)...

a)

simple molecule.

b)

extended structure.

43.

This is an example of a(n)...

a)

simple molecule.

b)

extended structure.

44.

Molecules are atoms "joined" together by...

a)

chemical bonds/attractive forces.

b)

sticks/circles/spheres.

c)

super glue!

45.

What is the example in the image?

a)

The electrons in an atom

b)

A diatomic structure

c)

An extended structure (crystal lattice)

d)

A water molecule

46.
An experiment is being done to determine how light affects the growth of small zinnia plants. One plant is placed in full sunlight, the second in a shaded area, the third in an unlit closet. The hypothesis of this experiment could be:
a)
Plants grow differently under different conditions.
b)
Zinnia plants in direct sunlight grow taller than zinnia plants in little or no sunlight.
c)
Many things, including sunlight, affect the growth of a plant.
47.
What can you infer about the cat you observed eating?
a)
The cat is black and white.
b)
The cat is fat.
c)
The cat is hungry.
d)
The cat is eating.
48.
This variable in an experiment is the one being deliberately changed by the scientist. 
a)
dependent variable
b)
independent variable
c)
data
d)
control group
49.
The part of the experiment that remains the same for the control and experimental group.
a)
constants
b)
control
c)
independent
d)
dependent
50.

Does the flavor of ice cream affect how fast the ice cream melts? The flavor of ice cream is the _______________

a)

Independent variable

b)

Dependent variable

51.

Aaliyah wants to know how drinking milk affects how tall a a person grows. Which is the dependent variable?

a)

The height of a person

b)

Drinking milk

52.
What two types of measurements make up DENSITY? 
a)
Mass and Volume
b)
Temperature and Mass
c)
Grams and Centimeters
d)
Volume and Weight
53.
Look at this image.  Which object has the LOWEST density in water? How? 
a)
The Ping Pong Ball because it floats to the top 
b)
The bolt because it has sunk to the bottom
c)
The soda cap because it is not just full of air like the Ping Pong ball
54.
Jack has a rock. The rock has a mass of 14g and a volume of 2cm3. What is the density of the rock?
a)
7 mL
b)
7 g/cm3
c)
28 g/cm3
d)
1/7 g/cm3
55.
If an object has a density of .6 g/mL and you put it into water, will it sink or float?  
a)
sink
b)
float
56.
What is the formula for density?
a)
density = mass x volume
b)
density = mass / volume
c)
density = mass + volume
d)
density = mass - volume
57.
Calculate the density of the cube.
a)
2 g/cm3
b)
4 g/cm3
c)
6 g/cm3
d)
8 g/cm3

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