Fall Chemistry Review

Front

What is density?

Back

Density is the mass of a substance divided by its volume, typically expressed in grams per cubic centimeter (g/cm³). It determines whether an object will float or sink in a fluid.

Front

What does it mean if an object has a density less than 1 g/cm³?

Back

If an object has a density less than 1 g/cm³, it will float in water.

Front

What is a solution?

Back

A solution is a homogeneous mixture of two or more substances where one substance (the solute) is dissolved in another (the solvent).

Front

What is the charge of a proton?

Back

The charge of a proton is +1.

Front

What is the charge of an electron?

Back

The charge of an electron is -1.

Front

What is an ion?

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

Front

What is the charge on an Aluminium ion?

Back

The charge on an Aluminium ion is +3.

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture in which the components are not uniformly distributed, and different parts of the mixture can be seen.

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture in which the components are uniformly distributed, and the mixture appears the same throughout.

Front

What is a pure substance?

Back

A pure substance is a material that has a constant composition and consistent properties throughout.