Names Of Compounds/ Things Flashcards
Water
H2O
Ammonia
NH3
Why would the name end in -ide?
If there are only 2 elements present
Ending for hydroxides
-OH
Ending for cyanides
-CN
Why do we use Roman numerals in brackets
If the element has more than one oxidation state we show the charge of the element in Roman numerals e.g. Iron(II) chloride = FeCl2 and Iron(III) chloride = FeCl3
What happens when there are 2 non metals
The actual number of the atoms in the element present are stated e.g. CO = Carbon Monoxide
CO2 = Carbon Dioxide
SO2 = Sulfur Dioxide. It could be called Sulfur(IV) Oxide because Oxygen is diatomic and so the Roman numerals go up in 2s
Carry on the pattern - 1 = mon-
2= di- 3= tri- 4= tetra- 5= penta- 6= hexa- 7= hepta- 8= octa- 9= nona- 10= deca-
Formula for carbonate
CO3 2-
Formula for Sulfate
SO4 2-
Formula for Nitrate
NO3 -
Write the formula for Sulfite
SO3 2-
Write the formula for Nitrite
NO2 -
Write the formula for Chlorate
ClO3 -
Write the formula for Hypochlorite
ClO3 -
Write the formula for Sulfuric Acid
H2SO4 2-
Write the formula for Nitric Acid
HNO3
Write the formula for Hydrochloric Acid
HCl
Write the formula for Methane
CH4
Write the name and formula for the first 5 Hydrocarbons and then write the rule for working them out after the first 4.
Methane - CH4 Ethane - C2H6 Propane - C3H8 Butane - C4H10 Pentane - C5H12
C6 = hex- and so on
What do the elements Nitrogen and Hydrogen join to create
The ammonium group. NOT to be confused with the compound ammonia.
Formula = NH4^+
It generally sits in the place taken by a metal in a formula
