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MrRa [10]
3 years ago
12

Which of the following represents the greatest number of moles? please help! :)

Chemistry
2 answers:
babymother [125]3 years ago
8 0
The answer is A helium I’m pretty sure
zloy xaker [14]3 years ago
5 0

Answer:

Helium

Explanation:

He- 3.99739969150064 (4)

S-0.498986433806336 (0.5)

Li-3.02550064832148 (3)

B-2.959948200906496 (3)

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In an electrically neutral atom of any element, there are equal numbers of
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B. electrons and protons.

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How many moles of neon gas are there 25.0 L of gas or 5.0°C with a pressure of 89.9 KPa?
vladimir2022 [97]
  • Volume=25L
  • Temperature=5°C
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Now

\\ \rm\rightarrowtail PV=nRT

\\ \rm\rightarrowtail n=\dfrac{PV}{RT}

\\ \rm\rightarrowtail n=\dfrac{89.9(25)}{5R}

\\ \rm\rightarrowtail n=89.9(5)/R

\\ \rm\rightarrowtail n=449.5/R mol

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2 years ago
What is the answer ??z???????​
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