Answer:
The molar mass of dry air = 28.94
Density = 1.29
Explanation:
Mm of N2= 28, Mm of O2= 32, Mm Ar= 39.9
78% of N2 by mole give = 0.78×28= 21.84
21% of O2 by mole give = 0.21× 32= 6.72
1% of At by mole give = 0.01× 39= 0.39
Hence overall molecular weight of air = 21.84+6.72+0.39= 28.94
Density = m/ v,
1- mole of air occupy 22.4dm^3 volume
Density= 28.94/22.4= 1.29
A I don’t know how to explain it but I just know that it’s A
If your question means "How can you tell if a substance is a binary compound?"
<span>Then I'll answer this.
A binary compound is a chemical compound composed of only two elements.
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Answer:
sound waves in air and water are longitudinal. Their disturbances are periodic variations in pressure that are transmitted in fluids. Figure 13.5 the wave on a guitar string is transverse