Quiz about Chemical Formulas

Question 1

How many elements are in C₆H₁₂O₆?

Accepted Answer

3

Answer

1

Answer

2

Answer

4

Question 2

How many atoms of carbon (C) are in C₆H₁₂O₆?

Accepted Answer

6

Answer

3

Answer

12

Answer

24

Question 3

Element or compound?
H₂O

Accepted Answer

compound

Answer

element

Question 4

Which of the following is a compound?

Accepted Answer

CO2

Answer

Co

Answer

O2

Answer

C

Question 5

Which is the correct formula for:
three hydrogen (H)
one sulfur (S)
four oxygen (O)

Accepted Answer

H3SO4

Answer

HSO4

Answer

H4S3O

Answer

H2O

Question 6

The blue numbers in the image below represent ________

Accepted Answer

subscripts

Answer

I don't know, and don't want to try

Answer

coefficients

Answer

none of the answers are correct

Question 7

How many atoms are there TOTAL in:
H₂SO₄

Accepted Answer

7

Answer

6

Answer

5

Answer

3

Question 8

Calcium is most like which of the following?

Accepted Answer

Barium

Answer

Potassium

Answer

Cesium

Answer

Nitrogen

Question 9

The noble gases have how many valence electrons?

Accepted Answer

8

Answer

1

Answer

2

Answer

7

Question 10

Beryllium is in group number______.

Accepted Answer

Group 2

Answer

Group 3

Answer

Group 4

Answer

Group 7

Question 11

How many Elements are in the compound C₂H₈O ?

Accepted Answer

3

Answer

2

Answer

1

Answer

0

Question 12

If there is no subscript, there is ______ atom(s) of that element.

Accepted Answer

only 1

Answer

0

Answer

2

Answer

1 million

Question 13

How many elements are present in this compound?
Mg₂As₃COHNi₂

Accepted Answer

6

Answer

2

Answer

4

Answer

10

Question 14

Which of these is an element?

Accepted Answer

Cr3

Answer

H2Cr

Answer

OH

Answer

PNi

Question 15

Which of these statements is NOT true?

Accepted Answer

A molecule of lactose contains twice as many atoms as a molecule of fructose does.

Answer

A molecule of sorbitol contains three more oxygen atoms than a molecule of glutamine.

Answer

A molecule of fructose contains four more atoms than a molecule of glutamine does.

Answer

A molecule of lactose contains twice as many carbon atoms as a molecule of sorbitol does.

Question 16

A student is using colored beads to make a model of aluminum sulfate, Al₂(SO₄)₃. Aluminum atoms are represented by blue beads, sulfur atoms by yellow beads, and oxygen atoms by green beads.

Which combination of beads should the student use for the model?

Accepted Answer

2 blue, 3 yellow, and 12 green

Answer

6 blue, 3 yellow, and 7 green

Answer

2 blue, 1 yellow, and 4 green

Answer

6 blue, 12 yellow, and 12 green

Question 17

Which of these formulas contain equal numbers of nitrogen atoms?

Accepted Answer

Formulas I, II, and V

Answer

Formulas I and III

Answer

Formulas I and IV

Answer

Formulas II and III

Question 18

Which substances have the same number of carbon atoms?

Accepted Answer

Substances 1 and 3

Answer

Substances 1 and 2

Answer

Substances 2, 3, and 4

Answer

Substances 2 and 3 only

Question 19

How many atoms in all are in a molecule of serotonin? C₁₀H₁₂N₂O

Accepted Answer

25

Answer

10

Answer

24

Answer

1

Question 20

which one only has one type of atom In it.

Accepted Answer

Element

Answer

compound

Question 21

Is salt (NaCI) a compound or a element

Accepted Answer

Compound

Answer

element

Question 22

Which of the following is not a compound?

Accepted Answer

Cl

Answer

HCl

Answer

NaCl

Answer

CO2

Question 23

What is the subscript in the chemical equation?

Accepted Answer

The 4

Answer

The C

Answer

The H

Answer

There isn't a subscript

Question 24

What is a subscript?

Accepted Answer

It tells how many atoms of that certain element

Answer

Tells how many molecules there are

Answer

It tells how big the reactivity will be on a scale of 1-10

Question 25

The one or two letters used to represent elements

Accepted Answer

Symbol

Answer

Yield sign

Answer

Coefficient

Answer

Subscript

Question 26

How many Hydrogen atoms are in H₂O?

Accepted Answer

two

Answer

zero

Answer

one

Answer

three

Question 27

Which of the following is a compound?

Accepted Answer

CO2

Answer

Co

Answer

O2

Answer

C

Question 28

Which of the following is NOT an element?

Accepted Answer

H2O

Answer

H2

Answer

O2

Answer

Au

Question 29

Black = Carbon (C)
White = Hydrogen (H)
What would be the formula for ethane?

Accepted Answer

C2H6

Answer

CH4

Answer

CH6

Answer

C2H2

Question 30

The chemical formula for ammonium sulfate is (NH₄)₂SO₄. How many atoms of hydrogen are in the formula for ammonium sulfate?

Accepted Answer

8

Answer

4

Answer

6

Answer

10

Question 31

How many atoms in all are in a molecule with the formula CaCrO₄?

Accepted Answer

6

Answer

3

Answer

4

Question 32

Which is the correct formula for:
one carbon (C)
two oxygen (O)

Accepted Answer

CO2

Answer

CO

Answer

C2O

Answer

2CO

Question 33

How many different elements are in this chemical formula: C₂H₂ClK₃

Accepted Answer

4

Answer

6

Answer

8

Answer

2

Question 34

Which of the following is a compound?

Accepted Answer

CO

Answer

Co

Answer

He

Answer

H

Question 35

Which best describes a compound?

Accepted Answer

made from two or more elements

Answer

found on the periodic table

Answer

a pure substance

Answer

only 100 in the world

Question 36

How many Chlorine are in MgCl₂?

Accepted Answer

2

Answer

1

Answer

3

Question 37

In which of these compounds are there twice as many oxygen atoms as hydrogen atoms?

Accepted Answer

H2SO4

Answer

H3PO4

Answer

HClO3

Answer

H2O

Question 38

Can be found on the periodic table

Accepted Answer

Element

Answer

Compound

Answer

MIxture

Question 39

all matter is made of what

Accepted Answer

atoms

Answer

energy

Answer

electrons

Answer

compounds

Question 40

How many atoms of sulfur are in each molecule H^₂SO₄?

Accepted Answer

1

Answer

2

Answer

4

Answer

3

Question 41

Alanine is an amino acid with formula C₃H₇NO_2. How many atoms in all are in each molecule of alanine?

Accepted Answer

13

Answer

7

Answer

15

Answer

12

Question 42

Ethylamine is a compound with the formula C₂H₅NH₂. How many total atoms are in each molecule of ethylamine?

Accepted Answer

10

Answer

2

Answer

5

Answer

8

Question 43

How many atoms of hydrogen are in a molecule of glucose (C₆H₁₂O₆)? _____

Accepted Answer

12

Answer

6

Answer

10

Answer

2

Question 44

How many atoms in all are in a molecule with the formula CaCrO₄?

Accepted Answer

6

Answer

5

Answer

2

Answer

10

Question 45

How many atoms of carbon are in a molecule with the formula CH₃COCH₃?

Accepted Answer

3

Answer

2

Answer

10

Answer

6

Question 46

C₈H₁₁NO₂Dopamine is a neurotransmitter that serves many important functions in the human brain. The formula for dopamine is shown above. How many total atoms are in each molecule of dopamine?

Accepted Answer

22

Answer

23

Answer

21

Answer

10

Question 47

What's the formula?

Three Hydrogen (H) atoms

One Phosphorous (P) atom

Four Oxygen (O) atoms

Accepted Answer

H3PO4

Answer

H4P3O

Answer

HPO

Answer

O4PH

Chemical Formulas

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