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Pani-rosa [81]
3 years ago
8

Ill give u brainliest help asap!

Chemistry
2 answers:
exis [7]3 years ago
8 0

light year and astronomical unit (a.u.)

Natali5045456 [20]3 years ago
4 0
Parsecs and arcseconds is your answer
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An atom contains 4 protons, 3 neutrons, and 5 electrons. what is its total electric charge?
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Neutrons are uncharged
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3 0
3 years ago
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How are alpha, beta and gamma radiation characterized in terms of mass and charge?
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Beta radiation - negative charge and the mass of an electron
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7 0
3 years ago
a gas at 155 kPa and 25 degrees C occupies a container with an initial volume of 1.00 L. By changing the volume, the pressure of
Ne4ueva [31]
First thing, you convert from kPa to Pa. Then, you find the atm value of the Pa you got.

155 kPa = 155 000 Pa
1 atm = 101 325 Pa
x atm = 155 000 Pa
You divide 101 325 over 155 000 and you get about 1.53
So, 155 000 Pa = 1.53 atm.
So, T (temperature) = 25 + 273 = 298

605 kPa = 605 000 Pa
1 atm = 101 325 Pa
x atm = 605 000 Pa
You divide 605 000 over 101 325 and you get about 5.97 
So 605 000 Pa = 5.97 atm
So, T = 125 + 273 = 398

P1 * V1/T1 = P2 * V2/T2
1.53 * 1/298 = 5.97 * V2/398
You calculate ad you get V2 = 0.342 L

Hope this Helps :)
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3 years ago
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Explanation:

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What is the molar mass of Cr3(AsO4)2?<br> g/mol
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