Chemistry 5A Review Quiz

Which of the following best describes a molecular formula?

• Shows the simplest whole number ratio of atoms.

• Describes the exact number of atoms of elements in a compound.

• Indicates only the types of elements in a compound.

• Represents the ionic charges of elements.

What is the empirical formula of acetic acid (C₄H₈O₄)?

• C₄H₈O₄

• CH₂O

• C₂H₄O₂

• C₃H₆O₃

Which is the correct formula for zinc bromide? Zinc ion is 2+

• ZnBr

• ZnBr₂

• Zn₂Br

• Zn₂Br₂

What is the charge of the carbonate ion in Mg(CO₃)?

• 1−

• 2−

• 3−

• 4−

What is the correct chemical formula for dinitrogen tetroxide?

• N₂O₄

• NO₄

• N₂O₂

• N₂O₃

What is the empirical formula of citric acid (C₆H₈O₇)?

• C₆H₈O₇

• C₃H₄O₃

• C₂H₃O₂

• CHO

What would be the correct name for HI?

• Hydroiodous acid

• Hydroiodic acid

• Iodic acid

What is the name of SiF₄?

• Silicon tetrafluoride

• Silicon difluoride

• Silicon fluorine

• Tetrasilyl fluoride

What is the correct name for Na₂S?

• Sodium sulfide

• Disodium monosulfide

• Sodium sulfate

• Disodium sulfur

In the molecular compound carbon and iodine, which element is named second?

• Carbon

• Iodine

• Both are named equally

• The less electronegative element