Compounds

1

What is the chemical formula for lithium oxide?

A Li2O B LiO C LiO2 D Li2O2

2

Which of the following is a compound of sodium and oxygen?

A Sodium oxide B Sodium chloride C Sodium hydroxide D Sodium carbonate

3

What is the chemical formula for silver nitrate?

A AgNO3 B AgNO2 C Ag2NO3 D AgNO4

4

What is the chemical formula for magnesium oxide?

A MgO B MgO2 C Mg2O D Mg2O3

5

Which of the following is a compound formed by carbon and hydrogen?

A Carbon dioxide B Methane C Sodium chloride D Ammonia

6

What is the chemical formula for copper sulfate?

A CuSO4 B CuSO3 C Cu2SO4 D CuSO5

7

How do the properties of a compound compare to the properties of the elements that form it?

A They are the same B They are completely different C They are similar D They are identical

8

Which of the following is a compound?

A Oxygen gas B Water C Iron D Nitrogen

9

What is the chemical formula for zinc oxide?

A ZnO B ZnO2 C Zn2O D ZnO3

10

Which elements make up water?

A Hydrogen and oxygen B Sodium and chlorine C Carbon and oxygen D Nitrogen and hydrogen

11

Which compound is formed when iron reacts with oxygen?

A Iron oxide B Iron chloride C Iron sulfide D Iron nitrate

12

Which of the following is a compound found in vinegar?

A Acetic acid B Sulfuric acid C Hydrochloric acid D Nitric acid

13

What is the smallest particle of a compound that retains its properties?

A Atom B Molecule C Ion D Electron

14

What is the chemical formula for hydrogen peroxide?

A H2O B H2O2 C HO2 D H2O3

15

Which of the following is a compound containing nitrogen and hydrogen?

A Ammonia B Methane C Water D Carbon dioxide

16

What is the chemical formula for lead nitrate?

A Pb(NO3)2 B PbNO3 C Pb2NO3 D Pb(NO3)3

17

What is the chemical formula for water?

A H2O B H2O2 C CO2 D NaCl

18

What is the chemical formula for calcium carbonate?

A CaCO3 B CaCO2 C Ca2CO3 D CaCO4

19

Which elements make up carbon dioxide?

A Carbon and oxygen B Carbon and hydrogen C Sodium and chlorine D Nitrogen and oxygen

20

What is the chemical formula for potassium permanganate?

A KMnO4 B K2MnO4 C KMnO3 D K2MnO3

21

What is the chemical formula for ammonia?

A NH3 B NH4 C N2H4 D N2H2

22

Which compound is formed when sodium reacts with chlorine?

A Sodium chloride B Sodium chlorate C Sodium chlorite D Sodium hypochlorite

23

What is the chemical formula for carbon dioxide?

A CO B CO2 C C2O D C2O2

24

What is the chemical formula for hydrochloric acid?

A HCl B H2Cl C HCl2 D H2Cl2

25

How many atoms of hydrogen are in one molecule of methane (CH4)?

A 1 B 2 C 3 D 4