Unit 7: Bonding and Nomenclature Test 2024

Front

What is a bond in chemistry?

Back

A bond is a lasting attraction between atoms that enables the formation of chemical compounds. Bonds can be ionic, covalent, or metallic.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons from one atom to another, resulting in charged ions. Covalent bonds involve the sharing of electrons between atoms.

Front

What is a Lewis structure?

Back

A Lewis structure is a diagram that represents the bonding between atoms of a molecule and the lone pairs of electrons that may exist.

Front

How do you determine the number of bonds around a central atom in a Lewis structure?

Back

Count the number of lines (bonds) connecting the central atom to surrounding atoms in the Lewis structure.

Front

What is a polar molecule?

Back

A polar molecule has a net dipole moment due to the presence of polar bonds that do not cancel each other out.

Front

What is a non-polar molecule?

Back

A non-polar molecule has no net dipole moment, often due to symmetrical distribution of charge.

Front

What is solubility?

Back

Solubility is the ability of a substance (solute) to dissolve in a solvent, forming a solution.

Front

What is the solubility of polar covalent compounds in water?

Back

Polar covalent compounds are generally soluble in water due to their ability to form hydrogen bonds with water molecules.

Front

What is the formula for Hydrosulfuric Acid?

Back

H₂S.

Front

What is the significance of electronegativity in bond formation?

Back

Electronegativity is a measure of an atom's ability to attract and hold onto electrons. It helps determine the type of bond (ionic or covalent) formed between atoms.