A.
Atom
Attraction between two oppositely charged ions
B.
Nucleus
The substance dissolved in a solution
C.
Electrons
Slight attractions between oppositely charged ends of polar
molecules
D.
Elements
Have a -1 charge
E.
Isotope
At least 2 atoms joined together; also smallest unit of most
compounds
F.
Compound
Van der Waals forces between water molecules
G.
Ionic bond
Water attracted (“sticks”) to other substances (not water)
H.
Ion
Pure substances organized in the Periodic Table
I.
Covalent bond
Attraction between atoms that are sharing a pair of electrons
J.
Covalent bond (yes, again!)
cohesion of water allows water bugs to stand on surface
K.
molecule
A measure of H+ and OH- ions present in a solution
L.
van der Waals forces
The basic unit of all matter
M. Polar molecule
A substance with pH lower than 7
N.
Hydrogen bonds
An atom which has lost or gained electrons and has a charge
O.
cohesion
Water is a very good one; dissolves many things
P.
adhesion
A substance made of different kinds of elements combined
Q.
surface tension
Molecule that has uneven distribution of electrons (atoms do
not share them “evenly”); slight charges at opposite ends
R.
Solute
Water attracted “sticks” to other water
S.
Solvent
Contains protons and neutrons
T.
pH
Bond type found in organic (biological) molecules
U.
acid
Ability of water to climb up thin plant tubes
V.
base
Atoms of the same element with different numbers of neutrons
W. 7
A substance with pH higher than 7
X. Capillary action
The pH of pure water