Chemical Bonds, Water & pH Flashcard

Front

What does it mean when a molecule is 'polar'?

Back

There is an uneven distribution of electron charge in the molecule.

Front

Why do all bonds form?

Back

To fill the outermost energy level.

Front

What are attractions between water molecules called?

Back

Hydrogen bonds.

Front

When dissolved in water, what do acids produce?

Back

Hydronium ions.

Front

Which substance is more acidic than lemon juice according to the pH range?

Back

Hydrochloric acid.

Front

What is a covalent bond?

Back

A chemical bond formed by the sharing of electron pairs between atoms.

Front

What is an ionic bond?

Back

A chemical bond formed through the transfer of electrons from one atom to another.

Front

What is the pH scale?

Back

A scale used to measure the acidity or basicity of a solution, ranging from 0 (acidic) to 14 (basic).

Front

What is a hydronium ion?

Back

A water molecule (H2O) that has an extra proton, giving it a positive charge (H3O+).

Front

What is the significance of water's polarity?

Back

It allows water to dissolve many substances, making it a universal solvent.