PDF chapter test TRY NOW
Read the statement and select the correct answer:
A)
Charollete conducted a simple experiment on rusting reaction with a wet iron wool and found that the total percentage of
Statement 1: Nitrogen is around \(20\%\).
Statement 2: Carbon-di-oxide is around \(20\%\).
Statement 1: Nitrogen is around \(20\%\).
Statement 2: Carbon-di-oxide is around \(20\%\).
B)
Statement 1: Air is mainly composed of hydrogen and oxygen.
Statement 2: Air is composed of nitrogen and oxygen only.
Statement 2: Air is composed of nitrogen and oxygen only.
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