A compact substance or a substance with a high density.

Measure of how fast velocity is changing, so we can think of it as the change in velocity over change in time. The most common use of acceleration is acceleration due to gravity, which can also appear as the gravitational constant (9.8 m/s2).

Compound that gives off H+ ions in solution.

Describes a solution with a high concentration of H+ ions.

Ions with a negative charge.

The electrode where electrons are lost (oxidized) in redox reactions.

Measures the size of a surface using length measurements in two dimensions.

A property in math which states that: (A+B)+C=A+(B+C) and (A*B)*C=A*(B*C).

Common units for measuring pressure.

The smallest object that retains properties of an element. Composed of electrons and a nucleus (containing protons and neutrons).