Free Printable Molecular formulae

Worksheets

Molecular formulae

Total questions: 15

Worksheet time: 16mins

Name

Class

Date

Name the following ionic compound: BeCl₂

beryllium chlorine

beryllium II chloride

beryllium chloride

beryllium dichloride

What is the correct formula for the compound, lithium oxide?

LiO

Li₂O

LiO₂

Li₂O₂

What is the IUPAC name of N₂O₃?

Nitrogen trioxide

Dinitrogen oxide

Dinitrogen trioxide

Nitrogen oxide

What is the chemical formula for tetrasulfur pentoxide?

S₄O

S₄O₅

S₅O₄

What do you call the substances on the left side of a chemical equation?

yield

products

reactants

compounds

Which contains the greatest number of elements?

5CH₄

Fe₂O₃

C₆H₁₂O₆

C₈H₁₀N₄O₂

What is the ratio of iron atoms to oxygen atoms in the compound for rust (Fe₂O₃)?

2:3

3:2

1:1

2:5

A formula with the lowest whole number ratio of elements in a compound is called

Molecular Formula

Chemical Formula

Empirical Formula

Distance Formula

The correct chemical name of Cu(OH)₂ is

copper hydroxide

copper(I) hydroxide

copper(II) hydroxide

cupric hydroxide

10.

What is the empirical formula of the following molecular formula: C₃H₆

C₃H₆

CH₂

C₂H₄

CH₃

11.

Which one is empirical?

H₂O₂

C₂H₆O₁₂

CaCl₂

N₂O₈

12.

A chemical formula that shows the actual number and kinds of atoms present in one molecule of a compound is called_________

ionic formula

covalent formula

empirical formula

molecular formula

13.

Which of these is an ammonium ion?

NH₄⁺

CO₃^2-

NO₃^-

OH^-

14.

Which of these is a nitrate ion?

NH₄⁺

CO₃^2-

NO₃^-

OH^-

15.

Which of these is a Carbonate ion?

NH₄⁺

CO₃^2-

NO₃^-

OH^-

100 %

Molecular formulae

Total questions: 15

Worksheet time: 16mins

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