Free Printable Molecular Models

Worksheets

Molecular Models

Total questions: 15

Worksheet time: 14mins

Name

Class

Date

What ELEMENTS are present in the chemical formula: CH₄

Carbon and Helium

Carbon and Hydrogen

Calcium and Hydrogen

Copper and Helium

What is the SMALL number in a chemical formula known as?

Coefficient

Subscript

What number identifies the SUBSCRIPT in the chemical formula: 3CH₄

What is $H_2O$ ?

A chemical formula that shows molecular composition

A chemical equation that shows a reaction

A chemical symbol from the periodic table

What is the best statement for the picture.

The molecule has four carbon atoms and four hydrogen atoms.

The molecule has two carbon atoms and four hydrogen atoms.

The molecule has two carbon atoms.

What is the best formula for this molecule?
(on the model: BLACK is Carbon, and WHITE is Hydrogen)

C₃H₂

C₃H₈

CH₈

What is the best formula for these molecules?
(on the model: WHITE is Hydrogen and RED is Oxygen)

H₂O

H₂O₂

3H₂O

4H₂O

What is the best statement for the picture of the molecular model for Propane. (in the model: BLACK is Carbon, WHITE is Hydrogen)

Propane has three carbon atoms and eight hydrogen atoms.

Propane has three carbon atoms and six hydrogen molecules.

Propane ONLY has three carbon atoms

What is the color of hydrogen atom in CH₄ molecule ?

Red

Black

White

10.

What elements are present in this compound? Na₂CO₃

Nitrogen

Sodium

Carbon

Cobalt

Oxygen

11.

This model represents a...

extended structure

molecule

compound

atom

12.

A structure formed by repeating groups of atoms bonded together

extended structure

molecule

subscript

chemical formula

13.

A number in a chemical formula that tells the number of atoms in a molecule or the ratio of elements in a compound

subscript

atoms

coefficient

compound

14.

number in front of a chemical formula in an equation that indicates the number of molecules

subscript

extened structure

coefficient

molecule

15.

Explain the difference between an atom and a molecule.

One molecule is made of one atom.

One molecule is always made of different particles.

One molecule is made of more than one atom.

One molecule is made of more than two atoms.

100 %

Molecular Models

Total questions: 15

Worksheet time: 14mins

Similar Resources on Wayground