Naming compounds

Multiple Choice

Why is understanding chemical bonding important in chemistry?

• It helps explain how substances interact and form new materials.

• It is only relevant for organic compounds.

• It is mainly used in physics, not chemistry.

• It is not important for understanding chemical reactions.

Open Ended

How do oxidation numbers help us predict the stability of compounds?

Multiple Choice

What is the oxidation number of a sodium ion in a binary ionic compound?

• 1+

• 2+

• 3+

• 0

Multiple Select

Which of the following ions can have more than one oxidation number?

• Copper

• Sodium

• Iron

• Lead

Fill in the Blanks

The formula for calcium fluoride is

Open Ended

Explain why compounds are neutral even though the ions within them carry charges.

Multiple Choice

When writing the name of an ionic compound with a metal that can have more than one oxidation number, how is the oxidation number indicated?

• With a Roman numeral

• With a Greek letter

• With a subscript

• With a prefix

Multiple Choice

What is the correct -ide name for the element nitrogen in a binary compound?

• Nitride

• Nitrite

• Nitronium

• Nitroxide

Multiple Select

Which of the following are examples of polyatomic ions?

• NH4+

• SO4^2-

• Cl-

• PO4^3-

Multiple Choice

Which of the following statements about polyatomic ions is correct?

• Polyatomic ions contain only one element.

• Polyatomic ions are always negatively charged.

• Polyatomic ions are covalently bonded groups of atoms with a charge.

• Polyatomic ions are found only in binary compounds.

Open Ended

Explain the steps required to write the chemical formula for a compound containing more than one polyatomic ion, such as ammonium phosphate.

Fill in the Blanks

A hydrate is a compound that has water chemically attached to its ions and written into its chemical formula as

.

Multiple Choice

What is the correct name for the compound N2O5?

• Dinitrogen pentoxide

• Nitrogen dioxide

• Nitrogen pentoxide

• Dinitrogen oxide

Multiple Choice

Which Greek prefix is used to indicate seven atoms in a binary covalent compound?

• Hexa-

• Hepta-

• Octa-

• Nona-

Open Ended

Reflecting on what you learned about binary ionic compounds and oxidation numbers, how do you think understanding oxidation numbers helps in predicting the stability of compounds?

Multiple Choice

Which type of chemical bond involves the sharing of electrons between atoms?

• Ionic bond

• Covalent bond

• Metallic bond

• Hydrogen bond