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strojnjashka [21]
3 years ago
9

The diagram shows the basis for forming which of the following?

Chemistry
1 answer:
Montano1993 [528]3 years ago
8 0
The answer is prolly A or B
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Helium has a density of 1.79 x 10-4 g/mL at standard temperature and pressure. A balloon has a volume of 6.3 liters. Calculate t
LenaWriter [7]
The density of He is 1.79 x 10⁻⁴ g/mL
In other words in 1 mL there's 1.79 x 10⁻⁴ g of He. 
To fill a volume of 6.3 L the mass of He required 
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   = 11 277 * 10⁻⁴ g
  Therefore mass of He required = 1.1277 g of He
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Can anyone please help me!! What is d. Beat the eggs?? A physical or a chemical change?
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Explanation:

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2 years ago
Can light bend around corners to reach an object
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Answer: Yes, light can bend around corners. In fact, light always bends around corners to some extent.

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Part b an "empty" container is not really empty if it contains air. how may moles of nitrogen are in an "empty" two-liter cola b
Sedbober [7]
<span>6.38x10^-2 moles
       First, let's determine how many moles of gas particles are in the two-liter container. The molar volume for 1 mole at 25C and 1 atmosphere is 24.465 liters/mole. So
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       Now air doesn't just consist of nitrogen. It also has oxygen, carbon dioxide, argon, water vapor, etc. and the total number of moles includes all of those other gasses. So let's multiply by the percentage of nitrogen in the atmosphere which is 78%
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        Rounding to 3 significant figures gives 6.38x10^-2 moles</span>
4 0
3 years ago
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