1st page
copper (radio circuit) = to conduct elec
plastic (on iron) = to prevent iron from rusting
calcium hydroxide (farming) = to neutralise acidic soil
limestone (extraction of iron) = to remove acidic impurities (in a
blast furnance)
2nd page
name 1 grp I element eg. sodium
name 1 grp VI element eg. Oxygen
give FORMULA of them combined -> Na2O
explain BRIEFLY:
why grp I elements have same chem properties?
- They all have 1 valence e-
why grp VI elements are non-metal
- they gain 2 e- to become anions, forming noble gas config.
3rd page is flow chart
draw ethene/ ethanol
if not wrong
ethene -> ethane , HYDROGENATION
ethene --polymerisation--> poly(ethene)
ethanol --oxidation--> ethanoic acid
4th pg is mixture elements compounds
5th(?) pg spd of rxn
6th pg ?
7th-8(?) pg METALS
9th pg before essay / flow chart for qual analysis
liquid tt boils at 100 c - obviously /water/
test for nitrate (present) - gas evolved /ammonia/
test for copper (present) - blue ppt /copper (II) hydroxide/
since copper n nitrate present, salt is... /copper (II)
nitrate/
give any 1 chem eqn
Cu(NO3)2 (aq) + 2NaOH (aq) -> Cu(OH)2 (s) + 2NaNO3
essay
9(a) nv do
10 (a) titration*** - since sodium carbonate is
soluble
cannot be general method***
(b) calculate something
(c) H+ + OH-
-> H2O
11 (a) describe fermentation under lab conditions
(b) C6H12O6 -> 2 C2H5OH + 2CO2 + state symbols
(c)Mr of ethanol =___
% of C in ethanol =__
