My Chel’s Chem

Ammonium
NH4+
Cesium
Cs+
Copper(I) or cuprous
Cu+
Hydrogen
H+
Lithium
Li+
Potassium
K+
Silver
Ag+
Barium
Ba2+
Cadmium
Cd 2+
Calcium
Ca2+
Chromium(II) or chromous
Cr2+
Cobalt(II) or cobaltous
Co2+
Copper(II) or cupric
Cu2+
Iron(II) or ferrous
Fe2+
Lead(II) or plumbous
Pb2+
Magnesium
Mg2+
Manganese(II) or manganous
Mn2+
Mercurous
Hg22+
Mercuric
Hg2+
Strontium
Sr2+
Nickle(II)
Ni2+
Stannous
Sn2+
Zinc
Zn2+
Aluminum
Al3+
Chromic
Cr3+
Ferric
Fe3+
Acetate
C2H3O2
Bromide
Br
Chlorate
ClO3
Chloride
Cl
Cyanide
CN
Dihydrogen phosphate
H2PO4
Fluoride
F
Hydride
H
Hydrogen carbonate or Bicarbonate
HCO3
Hydrogen sulfite or bisulfite
HSO3
Hydroxide
OH
Iodide
I
Nitrate
NO3
Nitrite
NO2
Perchlorate
ClO4
Permanganate
MnO4
Thiocyanate
SCN
Carbonate
CO32-
Chromate
CrO42-
Dichromate
Cr2O72-
Hydrogen phosphate
HPO42-
Oxide
O2-
Peroxide
O22-
Sulfate
SO42-
Chemistry
study of the properties of materials and the changes that materials undergo
Matter
physical material of the universe. it is anything that has mass and takes up space
Property
anything with characteristics that allow us to recognize a particular type of matter and to distinguish it from other types
atom
the almost ifinitely smallest building block of matter
molecules
atoms combine to form this
Pure substance
is matter that has distinct properties and a composition that doesn’t vary from sample to sample (water; table salt)
Compounds
substances composed of two or more elements so they contain two or more kinds of atoms
Mixtures
combinations of two or more substances in which each substance retains its own chemical identity
Physical Properties
can be measured without changing the identity and composition of the substance
Chemical Properties
describe the way a substance may change, or react, to form other substances
Intensive properties
do not depend on the amount of the sample being examined
Extensive properties
substances depend on the quantity of the sample
Dalton
1. Atoms are indestructible
2.Compounds (h2O)
3. all elements are identical
4. atoms are the smallest building blocks
Thompson
Cathode rays (showed that the elements are not identical) the negative charges weighed differently
Milliken
Oil Drop: experiment helped us establish the mass of an electron because he was able to determine the charge
Rutherford
Gold foil determined that atoms are mostly empty space
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