Naming Molecular Compounds Quiz

What is a key characteristic of molecular compounds?

• They are composed of non-metals.

• They are always ionic.

• They have a metallic luster.

• They contain metals.

Which prefix is used for three atoms in a molecular compound?

• Tetra

• Di

• Mono

• Tri

How do you determine which element is named first in a molecular compound?

• The element with the lower atomic number is named first.

• The element that is less metallic is named first.

• The element that is more metallic is named first.

• The element with the higher atomic number is named first.

What is the name of the compound Si2Br6?

• Silicon bromide

• Disilicon hexabromide

• Hexasilicon dibromide

• Silicon dibromide

What is the correct name for PCl5?

• Phosphorus pentachloride

• Phosphorus chloride

• Pentaphosphorus chloride

• Monophosphorus pentachloride

How is Cl2O7 named using the rules for molecular compounds?

• Dichlorine heptoxide

• Chlorine heptoxide

• Dichlorine oxide

• Chlorine oxide

What is the name of NF3 according to molecular compound naming rules?

• Nitrogen trifluoride

• Fluorine nitrogen

• Nitrogen fluoride

• Trinitrogen fluoride

What is the systematic name for water?

• Hydrogen monoxide

• Dihydrogen oxide

• Hydrogen oxide

• Dihydrogen monoxide

Why might dihydrogen monoxide sound dangerous?

• It is a rare compound.

• It is similar to carbon monoxide in name.

• It is highly reactive.

• It is a toxic chemical.

What is the purpose of the dihydrogen monoxide joke?

• To highlight the dangers of water.

• To demonstrate the importance of chemical safety.

• To promote the use of systematic names.

• To show how unfamiliar naming can create misconceptions.