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3241004551 [841]
3 years ago
8

Is aluminum homogeneous or heterogeneous?

Chemistry
1 answer:
inn [45]3 years ago
8 0
<span> aluminum is an element. All elements are pure substances, so that means they are homogenous.
please mark as brainliest

</span>
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How many atoms are in an oxygen molecule?
ZanzabumX [31]

Answer:

two atoms

Explanation:

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nalin [4]

Answer:

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3 0
3 years ago
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How many moles is 22.4 liters of oxygen gas at standard temperature and pressure represent
makkiz [27]

Answer:

So 1 mole

Explanation:

PV = nRT

P = Pressure atm

V = Volume L

n = Moles

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standard pressure = 1 atm

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Ok so we have

V = 22.4

P = 1 atm

PV = nRT

n = PV/RT

n = 22.4/(0.08206 x 273)

n  = 22.4/22.40

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7 0
3 years ago
What is the percent by mass of water in Na2SO4 • 10H2O?
bulgar [2K]
We determine the percent by mass of water in the compound by dividing the mass of  water by the total mass. The total mass of Na2SO4.10H2O is equal to 322 g. The mass of water is 180 g. 
       
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5 0
3 years ago
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