Chem 2 - Unit 1 Study Set

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Terms in this set (...)

Water
H2O (l)
Ice
H2O (s)
Steam/vapour
H2O (g)
Ammonia
NH3 (g)
Hydrochloric Acid
HCl (aq)
Nitric Acid
HNO3 (aq)
Phosphoric Acid
H3PO4 (aq)
Sulphuric Acid
H2SO4 (aq)
Ethanoic Acid
CH3COOH (aq)
Carbon Tetraflouride
CF4 (g)
Silicon Dioxide
SiO2 (s)
Silicon Tetrachloride
SiCL4 (s)
Carbon Dioxide
CO2 (g)
Carbon Monoxide
CO (g)
Nitrogen Dioxide
NO2 (g)
Nitrogen Monoxide
NO (g)
Sulphur Dioxide
SO2 (g)
Sulphur Trioxide
SO3 (g)
Hydroxide
OH-
Nitrate
NO3-
Hydrogen Carbonate
HCO3-
Carbonate
CO3 (2-)
Sulphate
SO4 (2-)
Phosphate
PO4 (3-)
Ammonium
NH4(+)
Mass Number
The number of protons and neutrons in the nucleus of an atom of an element
Atomic Number
The number of protons in the nucleus of an atom of an element
Relative Atomic mass
The mean mass of an atom, taking into account all of its isotopes, compared to a Carbon 12 atom (compared to the relative atomic mass of Carbon, which is 12)
Element
A substance made up of only one type of atom. It cannot be broken down into anything simpler. Each atom in the element has the same number of protons
Compound
Two or more different elements chemically bonded together (eg: H2O, NaCl, CaBr2 )
Molecule
2 or more non-metal atoms covalently bonded together. The atoms may be from the same element or from different elements
Ions
Atoms which have lost or gained electrons to become positively or negatively charged respectively
Iron Valencies
Iron II Fe 2+, Iron III Fe 3+
Copper Valencies
Copper I Cu +, Copper II Cu 2+
Lead Valencies
Lead II Pb 2+, Lead IV Pb 4+
Tin Valencies
Tin II Sn 2+, Tin IV Sn 4+
Silver Valency
Silver I Ag+
Zinc Valency
Zinc II Zn 2+
Oxidation Number
The number of electrons an atom uses to bond with atoms of another element.
Soluble Substances
All nitrates, most sulphates, most chlorides, most bromides, most iodides. Ammonium Carbonate, Sodium Carbonate, Potassium Carbonate, Ammonium Hydroxide, Sodium Hydroxide, Potassium Hydroxide, Lithium Hydroxide.
Insoluble substances
Lead sulphate, Barium sulphate, calcium sulphate, silver chloride, silver bromide, silver bromide. Most carbonates, most hydroxides.