Remember this. 1st half term Flashcards
Sulfuric Acid?
H2SO4
Hydrochloric Acid?
HCl
Methane?
CH4
Ammonia?
NH3
Carbon Dioxide?
CO2
Nitric Acid?
HNO3
Ionic bonding is between …… and ……..
Metals and non-metals
Covalent bonding is between …… and …..
Two non-metals
Metallic bonding is between …. and ……
Two metals.
Name the diatomic molecules?
Hydrogen (H2) Oxygen, Chlorine, Fluroine, Bromine, Iodine, Nitrogen
What is the formula for % mass of a compound?
Ar x no. of atoms in element / Mr of the compound
How to calculate the Mr?
Add all relative atomic masses together.
Give the two equations for moles?
Moles= conc x volume Mols = mass/Mr
At 20 degrees c (room temp and pressure 1atm) what volume does 1mol of gas take up?
24dm”3
How to find Atom economy?
Mr of desired products/ Mr of all reactants
How to find percentage yield?
mass of product actually made/ maximum theoretical mass x 100
What statement describes a Homologous series?
All compounds in the family have the same….
All compounds in the family have the same FUNCTIONAL GROUP.
Which 2 gases make up the air and what % of air is made up of them?
Nitrogen = 80% Oxygen= 20%
What substance turns white copper sulphate blue?
Water