Chemistry Final Review

Front

The red numbers in a chemical equation represent ________

Back

coefficients

Front

True or False: The dot diagram for neon (Ne) is correct.

Back

False

Front

What is the formula to calculate density?

Back

Density = Mass/Volume

Front

A bar of copper has a mass of 216g and a volume of 24cm³. What is the density of copper?

Back

9g/cm³

Front

Which of the following is NOT a property of ionic compounds?

Back

They are insoluble in water.

Front

In Rutherford's experiment, why did he conclude that atoms have a nucleus?

Back

Some of the particles were deflected back towards the alpha source.

Front

What is a subscript in a chemical formula?

Back

A number written below and to the right of a chemical symbol indicating the number of atoms of that element in a molecule.

Front

What is the difference between a coefficient and a subscript in a chemical equation?

Back

A coefficient indicates the number of molecules, while a subscript indicates the number of atoms in a molecule.

Front

What is the significance of the atomic number of an element?

Back

It represents the number of protons in the nucleus of an atom.

Front

What is an ionic bond?

Back

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