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oksano4ka [1.4K]
3 years ago
8

Which of the following would not be a clear indication of a chemical change

Chemistry
1 answer:
Alekssandra [29.7K]3 years ago
3 0

I believe the answer is "After adding two substances together a new order is detected" because nearly all of the other answers suggest a chemical change has taken place. The reason I say "almost" is because answer two and four results in bubbles forming so the answer cannot be both. The only one to not clearly show a chemical change has occurred is the last answer.

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What is the pressure of 4 moles of helium in a 50 L tank at 308k using PV=nRT
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Hey there!:

p = ??

n = 4 moles

V = 50 L

T = 308 K

R =  0.082 atm

p*V = n * R * T

p * 50 = 4 * 0.082 * 308

p*50 = 101.024

p = 101.024 / 50

p = 2.020 atm


Hope that helps!


8 0
2 years ago
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Answer:

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3 years ago
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4 0
2 years ago
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Which of the following steps correctly converts 3 moles of fluorine to an equivalent number of particles of fluorine? Divide Avo
Eva8 [605]

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