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rank the 4 gases (air,exhaled air, gas produced from decomposition of H202, gas from decomposition of NaHCO3) in order of increasing concentration of oxygen
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rank the 4 gases (air,exhaled air, gas produced from decomposition of H202, gas from decomposition of NaHCO3) in order of increasing concentration of oxygen

User Domenico
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Air has about 21% oxygen
Exhaled air has about 16% oxygen
The gas produced from decomposition of H₂O₂ is pure oxygen
The gas produced from decomposition of NaHCO₃ is pure carbon dioxide
Thus, the order is:
1) Gas produced from decomposition of H₂O₂
2) Air
3) Exhaled air
4) Gas produced from decomposition of NaHCO₃
User Nouseforname
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