The Basics
Any substance that occupies space and has mass.
Matter
Protenz Hydrogen
pH
A chemical combination of matter in definite proportions
Pure Substance
The basic unit of matter.
Atoms
0-6.9 on the pH scale represents?
Acidic, positive
The simplest form of chemical matter.
Element
An atom or molecule that carries an electrical charge
Ion
A stable uniform mixture of two or more substances
Solution
Unstable physical mixtures of undissolved particles in a liquid (think vinaigrette with herbs)
Suspension
7.1-14 on the pH scale represents?
Alkaline or negative
A chemical combination of 2 or more atoms.
Molecule
Ion with a negative charge
Anion
A physical combination of matter in any proportions
Ex.
Salt water
Physical Mixture
Not mixable
Immiscible
Characteristics that can be determined without a chemical reaction and do not involve a chemical change in the substance.
ex.
Ice melts and becomes water
Physical change
A molecule containing 2 or more atoms of the same element.
Elemental molecule
Ion with a positive charge
Cation
Substance dissolved in a solution
Ex. Kool aid
Solute
Mixable
Miscible
Characteristics can only be determined by a chemical reaction and involve a chemical change in the substance.
Ex.
an apple turning brown, wood burning, iron rusting
Chemical change
Chemical combinations of 2 or more atoms of different elements.
Compound molecules
This is neutral on the pH scale
7
The substance that dissolves the solute and makes the solution
Ex. Water is the universal on elf these.
Solvent
An unstable physical mixture of two or Moree immiscible substances plus a special ingredient called an emulsifier
Emmulsion
Water loving=
Oil loving=
Water Loving = Hydrophilic
Oil Loving = Lipophilic