nomenclature binary molecular compounds

The compound SiO₂

• is ionic.

• is an acid.

• is binary.

• is a polyatomic ion.

Which of the following compounds is not ionic?

• Al₂S₃

• SF₆

• MgO

• KCl

Which of the following is true?

• Metals form anions.

• Metals form cations.

• Anions are positive ions.

• Metals can form either cations or anions.

Positive ions are formed when an atom

• loses electrons.

• gains protons.

• gains electrons.

• loses protons.

The halogen in period 5 of the periodic table is

• magnesium.

• iodine.

• fluorine.

• strontium.

In naming a binary molecular (covalent) compound, the number of atoms of each element present in the molecule is indicated by

• Roman numerals.

• superscripts.

• prefixes.

• suffixes.

The name of P₂O₅ is

• phosphorus oxide.

• phosphorus pentoxide.

• diphosphorus pentoxide.

• phosphorus (V) oxygen (II).

A covalent compound made of one sulfur and two oxygen atoms would be named

• sulfur dioxide.
• sulfur oxide.
• disulfur oxide.
• sulfide oxygen.

The covalent compound N₂O₅ would be named

• nitrogen oxide.
• dinitrogen oxide.
• nitrogen pentoxide.
• dinitrogen pentoxide.

The name of P₄S₁₀ is

• phosphorous sulfide
• phosphorus sulfide
• tetraphosphorus decasulfide
• phosphorus (X) sulfide