wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Chemistry Review

Total questions: 56

Worksheet time: 36mins

Name
Class
Date
1.

A pure substance that cannot be broken down into a simpler substance is a(n)

a)

atom

b)

element

c)

molecule

d)

compound

2.

This tells us the number of molecules and is in front of the chemical formula

a)

coefficient

b)

subscript

c)

product

3.

How many elements are in the following compound:
12CaCO212CaCO_2  

a)

1

b)

2

c)

3

d)

12

4.

Which element is NOT present in the following compound:  C6H12O6C_6H_{12}O_6  

a)

Oxygen

b)

Hydrogen

c)

Carbon

d)

Calcium

5.

How many molecules are present in  5CaCO25CaCO_2  

a)

2

b)

3

c)

5

d)

20

6.

In the compound 3H2O3H_2O  , what is the subscript for oxygen?

a)

1

b)

2

c)

3

d)

9

7.

How many atoms are there in total?  4CaCO24CaCO_2  

a)

3

b)

4

c)

12

d)

16

8.

The element of life that is present in all organic compounds is

a)

oxygen (O)

b)

carbon (C)

c)

carbon dioxide (CO 22 )

d)

water (H 22 O)

9.

C6H12O6C_6H_{12}O_6  

a)

an element

b)

an organic compound

c)

an inorganic compound

10.

Two or more elements chemically combine to form a

a)

atom

b)

compound

c)

super-element

11.

C8H18C_8H_{18}  is

a)

organic

b)

inorganic

12.

The symbol for Phosphorus is

a)

P

b)

Ph

c)

PO

d)

K

13.

The symbol for Potassium is

a)

P

b)

Po

c)

K

d)

Pt

14.

The symbol for Sodium is

a)

NA

b)

Na

c)

So

d)

S

15.

The symbol for Calcium is

a)

C

b)

Ca

c)

CA

d)

Cm

16.

Which organic compound is used for growth and repair?

a)

carbohydrates

b)

proteins

c)

lipids

d)

nucleic acids

17.

Which organic compound(s) are used for energy?

a)

lipids

b)

proteins

c)

carbohydrates

d)

nucleic acids

18.

Which organic molecule contains the genetic information on how to make proteins?

a)

carbohydrates

b)

proteins

c)

lipids

d)

nucleic acids

19.

Bread, pasta, and rice are examples of

a)

proteins

b)

lipids

c)

carbohydrates

d)

nucleic acids

20.

Chicken, fish, and eggs are examples of

a)

proteins

b)

lipids

c)

carbohydrates

d)

nucleic acids

21.

Butter and oil are examples of

a)

proteins

b)

carbohydrates

c)

lipids

d)

nucleic acids

22.

DNA and RNA are examples of

a)

proteins

b)

carbohydrates

c)

lipids

d)

nucleic acids

23.

Contain carbon

a)

organic compounds

b)

inorganic compounds

24.

do NOT contain carbon (for the most part)

a)

organic copmounds

b)

inorganic compounds

25.

The most important inorganic molecule or compound is

a)

carbon

b)

glucose

c)

water

26.

Choose the 4 major groups of organic compounds.

a)

water

b)

carbohydrates

c)

lipids

d)

protein

e)

nucleic acids

27.

Match the following

a)

1.

carbohydrates

b)

2.

proteins

c)

3.

lipids

d)

4.

nucleic acids

28.

What is a role, or job, of carbohydrates?

a)

to make us happy

b)

to provide living things with energy

c)

to give Mrs. Corona "chichos"

d)

to be used for growth and repair

29.

What is the role, or job of proteins?

a)

to provide living things with energy

b)

to be used for growth and repair

c)

to hold the instructions that cells need to carry out life functions

30.

What is the role, or job, of nucleic acids?

a)

to provide living things with energy

b)

to be used for growth and repair

c)

to hold the instructions that cells need to carry out functions and contain genetic info on how to make proteins

31.

Many sugar names end in

a)

"gar"

b)

"ose"

c)

"ice"

d)

"bar"

32.

What do enzymes help to do?

a)

slow down chemical reactions

b)

to chew food

c)

speed up chemical reactions in the body

33.

What are the two types of nucleic acids?

a)

MTA

b)

DNA

c)

TWA

d)

RNA

34.

Organize these options into the right categories

Categorize the following
Carbohydrates
Proteins
Lipids
Nucleic Acids
35.

Chemicals used to detect the presence of a particular substance are called

a)

chemical indicators

b)

EKG tests

c)

lipids

d)

amino acids

36.

Match the following chemical indicator with the substance it detects

a)

Bromthymol Blue (BTB)

1.

from blue to yellow if there is CO2

b)

Lugol's Solution (KI)

2.

from amber to black if there is starch

c)

Biuret Reagent

3.

from blue to purple if there is protein

37.

How much of our body does water make up?

a)

1/3

b)

1/2

c)

2/3

d)

1/4

38.

What do enzymes do?

a)

decrease the rate of chemical reactions

b)

increase the rate of chemical reactions

c)

keep the rate of chemical reactions steady

39.

The study of the properties of matter and how it changes is called

a)

biology

b)

chemistry

c)

element

d)

symbol

40.

A pure substance that cannot be broken down into a simpler substance

a)

biology

b)

chemistry

c)

element

d)

symbol

41.

A shorthand way of writing an element's name is a

a)

simile

b)

science

c)

sign

d)

symbol

42.

True or False: Symbols are ALWAYS the first letter of an element's name.

a)

True

b)

False

43.

Match the following element with its symbol.

a)

hydrogen

1.

H

b)

carbon

2.

C

c)

oxygen

3.

O

d)

nitrogen

4.

N

e)

fluorine

5.

F

44.

Match the following elements with their symbols.

a)

calcium

1.

Ca

b)

carbon

2.

C

c)

chlorine

3.

Cl

45.

What is the element of life that ALL living things contain, or have?

a)

carbon

b)

oxygen

c)

hydrogen

46.

A force that holds 2 atoms together as a single unit.

a)

atom

b)

bond

c)

compound

d)

molecule

47.

TWO or MORE elements chemically combined

a)

atom

b)

bond

c)

compound

d)

molecule

48.

Chemical symbols showing the "recipe" for making a specific compound are known as a

a)

menu

b)

key

c)

directions

d)

formula

49.

Label the coefficient and the subscript in the following chemical formula:

a)

coefficient

b)

subscript

1
2
1)
2)
50.

This is the number in FRONT of the chemical formula that shows how many molecules are present. (If there is no number, it's an invisible 1.

a)

subscript

b)

superscript

c)

variable

d)

coefficent

51.

Match the following symbols with its element.

a)

P

1.

phosphorus

b)

K

2.

potassium

c)

S

3.

sulfur

d)

Na

4.

sodium

e)

Fe

5.

iron

52.

Which of the following is a compound?

a)

Na

b)

NaCl

c)

O

d)

H

53.

This shows the number of atoms of an element in a molecule. It is the number written below the symbol.

a)

coefficent

b)

subscript

54.

This shows the number of molecules present in a compound. It is the number written in front of the formula.

a)

coefficent

b)

subscript

55.

Check all that apply for coefficient.

a)

shows the number of atoms of an element in a molecule

b)

shows the number of molecules present in a compound

c)

number written below the symbol

d)

number written in front of the formula

56.

Check all that apply for subscript.

a)

shows the number of atoms in an element in a molecule

b)

shows the number of molecules present in a compound

c)

number written below the symbol

d)

number written in front of the formula

Similar Resources on Wayground

ANALOG AND DIGITAL COMMUNICATION

55 questions

ANALOG AND DIGITAL COMMUNICATION

quiz

Worksheet

•

Professional Development

level 2 electrical mock paper 2

60 questions

level 2 electrical mock paper 2

quiz

Worksheet

•

Professional Development

Spring 21 PODA 2 Dr Mo Discussion Questions Final

56 questions

Spring 21 PODA 2 Dr Mo Discussion Questions Final

quiz

Worksheet

•

University - Professi...

Colour revision quiz 4

54 questions

Colour revision quiz 4

quiz

Worksheet

•

Professional Development

Anatomy Basics

60 questions

Anatomy Basics

quiz

Worksheet

•

Professional Development

Chapter 5: Histology

51 questions

Chapter 5: Histology

quiz

Worksheet

•

University - Professi...

Human Factors Midterm

59 questions

Human Factors Midterm

quiz

Worksheet

•

Professional Development

Electrical fundamentals

55 questions

Electrical fundamentals

quiz

Worksheet

•

Professional Development