Chemistry Final Exam Review Fall 2024

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

What is the formula for magnesium chloride?

Back

The formula for magnesium chloride is MgCl₂.

Front

How do you calculate moles from a balanced chemical equation?

Back

Use the coefficients from the balanced equation to determine the mole ratio between reactants and products.

Front

Which element has the highest electronegativity?

Back

Fluorine (F) has the highest electronegativity.

Front

What happens to frequency as wavelength increases?

Back

As the wavelength of an electromagnetic wave gets longer, the frequency gets lower.

Front

What is the formula for an ionic compound formed from barium and iodine?

Back

The formula is BaI₂.

Front

What is the mole ratio of Al to Al₂O₃ in the reaction 2Al + 3FeO → 3Fe + Al₂O₃?

Back

The mole ratio of Al to Al₂O₃ is 2:1.

Front

Define electronegativity.

Back

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons.

Front

What is the significance of the coefficients in a balanced chemical equation?

Back

Coefficients indicate the number of moles of each substance involved in the reaction.

Front

What is the relationship between ionic compounds and their melting points?

Back

Ionic compounds generally have high melting points due to the strong electrostatic forces between the ions.