A chemical compound consisting of exactly two different elements.
Although containing two or more elements, it could contain more than two atoms.
3 types of binary compounds
binary acid
binary ionic compounds
binary covalent compounds
A polyatomic ion is a group of atoms with an electric charge.
An ion is an atom with an electric charge (positive or negative)
Three exceptions: are ternary not binary.
Cyanide
Hydroxide
Peroxide
the big five
Carbonate (CO32-)
Chlorate (ClO31-)
Nitrate (NO31-)
Phosphate (PO42-)
Sulfate (SO43)
acids
A compound in which one or more H+ ions are bounded by a negative ion.
When naming an acid, the acid is based on the name of the negative ion that is part of the acid.
C2H302- = acetate
NH4+ = ammonium
Co3 2- = carbonate
ClO 3- = chlorate
ClO2 - = chlorite
CrO4 2- = chromate
CN- =cyanide
Cr2O7 2- = dichromate
HCO 3- = bicarbonate
HSO4 - = bisulfate
HSO3 - =bisulfite
OH - hydroxide
ClO - = hypochlorite
NO3 - =nitrate
C2O4 2- = oxalate
ClO4 - = perchlorate
MnO4 - = permanganate
PO4 3- = phosphate
SO4 2- = sulfate
SO3 2- = sulfite
hydrates
Ionic compounds that have a specific number of water molecules attached to them.
anhydrates
Hydrates that have had water molecules removed (such as through heating)
The number of water is indicated with a coefficient in the formula and a prefix in the name.
reactants
Substances that take part in a chemical equation.
products
Substances that are produced in a chemical equation.
in balancing chemical equation: The coefficients next to the symbols of the entities indicate the number of moles of a substance produced or used in the chemical equation.
The reactants and products are separated by an arrow, usually called yields
Chemical equations should contain the state of the properties of the products and the reactants whether: