Oxygen can be separated by heating certain oxygen compounds by electrolysis or by liquefying air.
Question 6
a) B
b) A
Question 7
a) Iron
b) oxygen, water
c) i) Galvanizing
ii) Painting
From the Boyle's law, it is clear that volume is inversely proportional to pressure. Thus it is prudent to say that, P1V1=P2V2
From the question above,
P1=1atm
P2=3.8atm
V1=?
V2=7.6L
Hence, 1*V1=3.8atm*7.6L
V1=28.88L
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