Ch. 6 Test Review

An organic compound is a compound that contains ________.

• carbon

• hydrogen

• oxygen

• sodium

A charged atom that has lost or gained electrons is called a(n) ____________.

• acid

• catalyst

• ion

• isotope

Which defines an atom?

• building block of energy

• building block of matter

• charged particle

• smallest particle

Bond that forms when electrons are shared.

• ionic bond

• covalent bond

Bond that forms between charged ions.

• ionic bond

• covalent bond

Radioactive isotope of carbon.

• Carbon-12

• Carbon-14

How long does is take for one half of a sample of Carbon-14 to decay?

• 28,650 years

• 11,460 years

• 5,730 years

An element is a pure substance that cannot be broken down into other substances by physical or chemical means.

• True

• False

A molecule of water (H₂O) has which bonds?

• 1 covalent bond

• 1 ionic bond

• 2 covalent bonds

• 2 ionic bonds

A catalyst increases the rate of a reaction by increasing the net energy change of the reaction.

• True

• False