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alexdok [17]
3 years ago
14

A paper burning is A.heat or B.chemical

Chemistry
2 answers:
Marina CMI [18]3 years ago
7 0
It should probably be chemical
sashaice [31]3 years ago
5 0
It is chemical because a burned paper comes out different.
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Name each of the following chemistry structures (picture) plz
Triss [41]

Answer:

(a) 3-ethylpentane (because the longest chain is 5 carbon atoms, and ethyl is positioned at the 3rd carbon atom)

(b) 1, 2-dimethylbutane (because two methyl is positioned at the 2nd and 3rd carbon atom)

(c) 3, 4-dimethylhexane (the longest chain here is 6 carbon atoms, and two methyl is positioned at the 3rd and 4rd carbon atom)

(d) 3-methyl 4-ethylhexane ( the longest chain is 6 carbon atoms, one methyl is positioned at the 3rd carbon atom while one ethyl is positioned at the 4rd carbon atom)

(e) and (f) are similar to the question before... and I dunno how to (g) and (h) cuz I haven't learned it

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Using ideal gas equation,  

P\times V=n\times R\times T

Here,  

P denotes pressure  

V denotes volume  

n denotes number of moles of gas  

R denotes gas constant  

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The values at STP will be:  

P=1 atm  

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Molar mass of gas given=?

Number of moles of gas, n= \frac{Given mass of the gas}{Molar mass of the gas}

Number of moles of gas, n= \frac{1.25}{Molar mass of the gas}

Putting all the values in the above equation,

1\times 0.663=\frac{1.25}{Molar mass of the gas}\times 0.0821\times 298.15

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<em><u>Radhe</u></em><em><u> </u></em><em><u>Radhe</u></em><em><u>❤</u></em>

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