Quiz: 2.3 and 2.6 Biochemistry and Solutions

makes up 60-70 percent of the volume of most living cells

• nitrogen

• water

• oxygen

• carbon dioxide

uneven sharing of electrons that produces a negative charge near the oxygen atom and positive charges near each hydrogen atom

• polarity

• non polar

• chemical bonding

• elemental response

The ease and speed with which an element combines, or reacts, with other elements and compounds.

• reactivity

• conductivity

• electricity

• bonding

a compound composed of positive and negative ions

• ionic compound

• element

• compound

• covalent bond

hydrogen ion

• H+

• H

• OH-

• OH

A substance that increases the hydrogen ion concentration of a solution.

• acid

• base

• buffer

• element

a compound that produces hydroxide ions in solution

• acid

• base

• buffer

• element

often taste sour; strong acids can burn skin and eyes; strong acids can dissolve metals

• base characteristics

• acid characteristics

• buffer characteristics

• elemental bonding

bitter, slippery, are proton H+ acceptors

• base characteristics

• acid characteristics

• buffer characteristics

• elemental bonding

measurement system used to indicate the concentration of hydrogen ions (H+) in solution; ranges from 0 to 14

• acidic scale

• basic scale

• pH scale

• pH measurement