The answer is definitely D
When discussing discordant and harmonious sound waves, the statement tat is false is : if the original waves combine to form irregular displacement of air, the sound will be discordant. The fact is, irregular displacement of air does not guarantee sound discordance
hope this helps
Answer: 1.31
Explanation:
No.of moles = given no.of atoms/Avagadro number
= 7.91×10^23 / 6.022 x 10^23
= 1.31
therefore, no.of moles = 1.31
Hope it helped u,
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No of moles= 88/44 =2
therefore no. of molecules =
therefore no.of molecules= 12.046*10^23
N=m/M
n=118/58.93=2
Answer: 2 moles
