Unit 2 Chemistry Of Life Part 1

Front 1

pH scale

Back 1

shows how acidic or basic a solution is

Front 2

cohesion

Back 2

when molecules that are the same stick to each other

Front 3

hydrogen bond

Back 3

a chemical bond that happens when a positive hydrogen atom and another slightly negative molecule attract to one another

Front 4

ionic bond

Back 4

chemical bond that occurs when atomrs transfer electron(s) to another atom

Front 5

covalent bond

Back 5

a chemical bond that occurs when two non-metals share electrons in order to become stable/get a full outer shell

Front 6

ion

Back 6

an atom that is charged either positively or negatively by the gain or loss of electrons

Front 7

Polar Molecule

(By GG)

Back 7

Molecule in which opposite ends have opposite electric charges.

Front 8

Solvent

(By GG)

Back 8

The substance that dissolves the other.

Front 9

Solute

(By GG)

Back 9

The substance that is dissolved and is present in the lesser amount. (There is less of it than of the solvent.)

Front 10

Solution
(By GG)

Back 10

A uniform mixture of two or more substances.

Front 11

S.C. - What is an acid

Back 11

A compound that donates H+ ions to a solution

Front 12

Isotope
H.A.

Back 12

containing the same number of protons in an atom but different number or neutrons

Front 13

Chemical Reactions
H.A.

Back 13

breaking of old and formation of new chemical bonds that result in new substances

Front 14

Aqueous Solution
H.A.

Back 14

solution in which water is the solvent

Front 15

Mass Number. [T.J]

Back 15

The number of protons and neutrons in an atom.

Front 16

Adhesion. [T.J]

Back 16

The binding of a cell to another cell, or a cell to a surface.

Front 17

Buffer. [T.J]

Back 17

a solution containing either a weak acid and its salt or a weak base and its salt, which is resistant to changes in pH.

Front 18

Base?
(A.H)

Back 18

A compound that removes H+ ions from an aqueous solution