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Earn +20 ptsQ: Percent composition is expressed as a percent by?
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Why is oxygen 21 percent and nitrogen 78 percent?
This is the composition of the air.
What is 2.2 percent as a decimal?
Expressed as a decimal, 2.2 percent is equal to 0.022.
What is the percent composition of cysteine?
The percent composition of cysteine is approximately 6.9% hydrogen, 32% carbon, 13.1% nitrogen, 26.2% oxygen, and 21.8% sulfur.
What the percent composition of Pb and Fe in galena?
Galena is primarily made up of lead (PbS) and iron. The percent composition of lead (Pb) in galena is typically around 86.6%, while the percent composition of iron (Fe) is very low, usually less than 1%.
What is the percent composition by mass of SO2?
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