Organic Chemistry
A compound which consists of hydrogen and carbon only.
hydrocarbon
A substance that increases the rate of reactions but isn't used up.
catalyst
These affect the rate of reaction. (Two answers)
surface area, concentration, temperature, use of catalyst
The approximate percentages of the four most abundant gases in dry air.
78% Nitrogen, 21% Oxygen, 1% Argon and 0.04% Carbon Dioxide (Answers may vary by 1%)
Atoms that have the same number of protons but a different number of neutrons.
isotopes
A man-made hydrocarbon which is the product of oil cracking.
alkene
The positive test for hydrogen.
a squeaky pop sound with lighted splint
Used for flame tests, dipped into the substance being tested.
a nichrome wire
The product of combustion of hydrogen in air.
water
The electron configuration of oxygen (which has 16 electrons).
2.8.6
A saturated hydrocarbon consisting of 6 carbon.
hexane
The positive test for chlorine.
bleach damp blue litmus paper
The chemical added to halogens used to test for them and what colour precipitate is seen?
acidified silver nitrate, white, cream and yellow
A metal which burns brightly when combusting in air.
magnesium
These gases are located to the right of the periodic table and are unreactive.
noble gases
These are joined together to form long strands of polymers through polymerisation.
monomer
The positive test for ammonia.
damp red litmus paper turning blue
The physical test and chemical used to find pure water.
boiling point at 100ºC and anhydrous copper sulphate
The five most reactive elements in the reactivity series.
potassium, sodium, lithium, calcium and magnesium
The charge of carbonate.
2-
The type of reaction which occurs when bromine water is reacted with an alkene.
addition reaction
The colours for these flame tests are:
1) Red
2) Lilac
3) Blue-green
4) Yellow
5) Orange-red
1) Lithium
2) Potassium
3) Copper
4) Sodium
5) Calcium
The chemical used to test for Cu, Fe(II), and Fe(III) and the colour precipitates of each.
sodium hydroxide and Cu is blue, Fe(II) is green, Fe(III) is red-brown
Three ways to prevent iron from rusting.
galvanising, barrier methods and sacrificial protection
In ionic bonding, it is the force between the two oppositely charged ions.
electrostatic force of attraction