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GrogVix [38]
2 years ago
12

Why does a star expand into a red giant?​

Chemistry
1 answer:
devlian [24]2 years ago
7 0

Answer:

"Hydrogen is still available outside the core, so hydrogen fusion continues in a shell surrounding the core. The increasingly hot core also pushes the outer layers of the star outward, causing them to expand and cool, transforming the star into a red giant."

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What is the mass in grams of 2.50 mol of ammonia vapor, NH3?
Crank

Molar mass:-

\\ \tt\longmapsto 14+3(1)=17g/mol

Now

\\ \tt\longmapsto Given\:mass=No\;of\:moles\times Molar\;mass

\\ \tt\longmapsto Given\:mass=17(2.5)

\\ \tt\longmapsto Given\:mass=42.5g

7 0
3 years ago
A container holds 6.4 moles of gas. Hydrogen gas makes up 25% of the total moles in the container. If the total pressure is 1.24
Degger [83]
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calculation

find the number of  hydrogen   moles the container, that is

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by  cross  multiplication

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3 years ago
At STP how many moles or helium would occupy a volume of 12 liters?
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?? mole ---------- 12 L

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hope this helps! 
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Answer:

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kolbaska11 [484]

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that's the correct answer

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