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. to make air a moderate supporter of combustion
chrome steel
silicon steel
stainless steel
invar
sulphanilamide
quinine
methicillin
novocaine
a definite shape but not volume
a definite volume and shape
a definite volume but not shape
neither definite volume nor shape
a basic salt
an acid salt
a double salt
a normal salt
carbohydrates
carbides
hydrocarbons
carbonyls
Astatine
Francium
Tritium
Zirconium
ethane
ethylene
acetylene
methane
electrochemistry
physical chemistry
biochemistry
tinctorial chemistry
calcium carbonate
calcium bicarbonate
magnesium sulphate
calcium sulphate
dextrose
fruit sugar
beet sugar
blood sugar
carbon monoxide
carbon dioxide
methane
phosgene
Sodium
red phosphorus
white phosphorus
sulphur
lead
chromium
zinc
tin
Rodenticide
Herbicide
Pesticide
Fungicide
Terylene
Rayon
Nylon
Silk
phosphorus pentaoxide
phosphorus trichloride
phosphorus trisulphide
phosphorus trioxide
Law of Multiple Proportions
Law of Definite Proportions
Law of Conservation of Mass
Law of Reciprocal Proportions
dephlogisticated air
azote
inflammable air
marine acid air
calcium soaps
lead soaps
soft soaps
hard soaps
adding milk of lime
filtering through sand
adding filter alum
chlorination
Carbon dioxide
Ammonia
Chlorine
Hydrogen sulphide
Carbon monoxide
Oxygen
Nitrogen
Hydrogen
pyrex glass
flint glass
quartz glass
Crooke's glass
Bronze
Brass
Solder
Gun metal
in the treatment of malaria
to relieve sleepiness
to induce sleep
to lower body temperature
nitrates
nitrites
hyponitrates
nitrides
it is lighter than air
in the lower layers it becomes unstable
ultra-violet light is present only in the upper layers
it mixes freely with O2 in the upper layers
Thiokol
Drikold
Perhydrol
Mannitol
streptomycin
terramycin
aureomycin
codein
calcium sulphate
ammonium chloride
caustic soda
silver nitrate