Taylor's Chemistry Final Review

Which of the following is NOT an example of matter?

• air

• heat

• smoke

• water vapor

A substance that can be separated into two or more substances only by a chemical change is a(n) ____.

• solution

• element

• mixture

• compound

Which of the following is a chemical property?

• color

• hardness

• freezing point

• ability to react with oxygen

The chemical symbol for iron is ____.

• fe

• Fe

• FE

• Ir

Which of the following is NOT a physical change?

• grating cheese

• melting cheese

• fermenting of cheese

• mixing two cheeses in a bowl

Which of the following does NOT involve a physical change?

• mixing

• melting

• grinding

• decomposing

The smallest particle of an element that retains the properties of that element is a(n) ____.

• atom

• electron

• proton

• neutron

Which of the following is NOT a part of Dalton's atomic theory?

• All elements are composed of atoms

• Atoms are always in motion

• Atoms of the same element are identical

• Atoms that combine do so in simple whole-number ratios

Which of the following is true about subatomic particles?

• Electrons are negatively charged and are the heaviest subatomic particle.

• Protons are positively charged and the lightest subatomic particle.

• Neutrons have no charge and are the lightest subatomic particle.

• The mass of a neutron nearly equals the mass of a proton.

The particles that are found in the nucleus of an atom are ____.

• neutrons and electrons

• electrons only

• protons and neutrons

• protons and electrons