?what's the ratio of oxygen gas
=21%
?what's the properties of oxygen
colorless-tasteless-odorless
scarcely dissolves in water
Has a neutral effect on litmus paper
doesn't burn but helps in burning
Heavier than the air
?what's the importance of oxygen
help in:respiration
clumping mountain
combines with acetylen gas to produce OXY-ACETYLENE which used for cutting and welding metals as it's temperature rises to3500 degree
?How to prepare oxygen gas
add hydrogen peroxide to manganese dioxide
?what's the sources of oxygen
green plants by photosynthesis process
?what's the symbol of oxygen gas
O2
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