Bonding and Nomenclature, FM, % comp, EF and MF Review

Front

What is an ionic compound?

Back

An ionic compound is a chemical compound composed of ions held together by electrostatic forces termed ionic bonding. They typically form between metals and nonmetals.

Front

Which of the following is NOT an ionic compound: CaO, NaOH, BaCl2, OBr2?

Back

OBr2 is not an ionic compound; it is a covalent compound.

Front

What are the strongest intermolecular forces of attraction?

Back

Hydrogen Bonds are the strongest intermolecular forces of attraction.

Front

Define empirical formula.

Back

An empirical formula is the simplest whole-number ratio of atoms of each element in a compound.

Front

What is the empirical formula of C4H6?

Back

C2H3 is the empirical formula of C4H6.

Front

How do you calculate percent composition by mass?

Back

Percent composition by mass is calculated by dividing the mass of the element in one mole of the compound by the molar mass of the compound, then multiplying by 100.

Front

What is the percent composition by mass of magnesium in MgSO4?

Back

The percent composition by mass of magnesium in MgSO4 is 20%.

Front

What do nonmetals tend to do in chemical reactions?

Back

Nonmetals tend to gain electrons in chemical reactions.

Front

What is the difference between molecular formula and empirical formula?

Back

The molecular formula shows the actual number of atoms of each element in a molecule, while the empirical formula shows the simplest ratio of these atoms.

Front

What is a covalent bond?

Back

A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms.