Learn Mode

Chemical Formulas and Molecular Compositions Quiz

#1

What is the chemical formula for water?

H2O
Explanation

Two hydrogen atoms bonded to one oxygen atom.

#2

Which of the following represents a molecular formula?

H2SO4
Explanation

Describes the number and type of atoms in a molecule.

#3

Which compound has the chemical formula CH4?

Methane
Explanation

One carbon atom and four hydrogen atoms.

#4

What is the chemical formula for sodium chloride?

NaCl
Explanation

One sodium atom and one chlorine atom.

#5

Which compound has the chemical formula NH3?

Ammonia
Explanation

One nitrogen atom and three hydrogen atoms.

#6

What is the chemical formula for hydrochloric acid?

HCl
Explanation

One hydrogen atom and one chlorine atom.

#7

What is the chemical formula for sulfuric acid?

H2SO4
Explanation

Two hydrogen atoms, one sulfur atom, and four oxygen atoms.

#8

What is the molecular formula for glucose?

C6H12O6
Explanation

Six carbon atoms, twelve hydrogen atoms, and six oxygen atoms.

#9

What is the molecular formula for sulfur dioxide?

SO2
Explanation

One sulfur atom and two oxygen atoms.

#10

What is the molecular formula for aspirin?

C9H8O4
Explanation

Nine carbon atoms, eight hydrogen atoms, and four oxygen atoms.

#11

What is the chemical formula for nitric acid?

HNO3
Explanation

One hydrogen atom, one nitrogen atom, and three oxygen atoms.

#12

What is the molecular formula for ethanol?

C2H5OH
Explanation

Two carbon atoms, six hydrogen atoms, and one oxygen atom.

#13

What is the chemical formula for hydrogen peroxide?

H2O2
Explanation

Two hydrogen atoms and two oxygen atoms.

#14

Which compound has the chemical formula H2SO4?

Sulfuric Acid
Explanation

Two hydrogen atoms, one sulfur atom, and four oxygen atoms.

#15

Which compound has the chemical formula H2O2?

Hydrogen Peroxide
Explanation

Two hydrogen atoms and two oxygen atoms.

#16

Which compound has the chemical formula HClO4?

Perchloric Acid
Explanation

One hydrogen atom, one chlorine atom, and four oxygen atoms.

Test Your Knowledge

Craft your ideal quiz experience by specifying the number of questions and the difficulty level you desire. Dive in and test your knowledge - we have the perfect quiz waiting for you!