gold
zinc
tin
molybdenum
its molecular weight is low
it is denser than ice
it is a good solvent for many ionic substances
the molecules of water are joined by hydrogen bonds
Gasoline
Kerosene
Sulphuric acid
Alcohol
xenon
krypton
argon
helium
tuberculosis
cancer
typhoid
malaria
cement an limestone
cement and sand
cement and gravel
cement, sand and gravel
increases the atomic mass of the atom
decreases the atomic mass of the atom
increases the charge on the nucleus
decreases the charge on the nucleus
annealing
tempering
calcining
galvanising
decomposition of petrol
fermentation of animal and plant waste
destructive distillation of coal
electrolysis of water
an oxidation process
a reduction process
a physical change
an electro-chemical process
ammonium chloride
ammonium carbonate
ammonium sulphate
potassium nitrate
potassium
sodium
red phosphorus
white phosphorus
diamond
coke
graphite
charcoal
CO2 poisoning
CO poisoning
phosgene poisoning
anesthesia
zinc
tin
copper
aluminium
TW Richards
FW Aston
Stas
Urey
aldehydes
alkenes
amino acids
alkynes
manganese dioxide
bauxite
animal charcoal
quicklime
Baking soda
Milk
Chloroform
Copper wire
conc. H2SO4
conc. HCl
conc. HNO3
acetic acid
Fe and C
Mn and C
Fe and Mn
Fe, Mn and C
Lead
Tin
Silver
Gold
copper and tin
aluminium and magnesium
copper and zinc
copper, tin and zinc
Limestone
FeO
SiO2
MgO
cryolite
bauxite
malachite
azurite
animal charcoal
coal
wood charcoal
sugar charcoal
vitamin C
vitamin B2
vitamin A
vitamin E
to make air a moderate supporter of combustion
to maintain the density of air constant
to prevent the hydrogen in air from exploding
to reduce the poisonous nature of ozone in air
a disinfectant
an analgesic
a hypnotic
a dye
Vitamin B6
Vitamin C
Vitamin K
Vitamin D