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spayn [35]
3 years ago
12

Why have scientists reasoned that Earth's outer core is liquid?

Chemistry
1 answer:
Gemiola [76]3 years ago
3 0

Because it is extremely hot.

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Which atom is smaller? (1 point) A. Hydrogen B. Oxygen
frutty [35]
Hydrogen because it only has one electron
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3 years ago
element that is neither a non-metal nor a metalloid, and is characterized by thin, dark grey filaments exhibiting magnetic prope
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Yes would you explain better
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An example of a binary compound is
Rainbow [258]

Answer:

a. KCl

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4 0
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What is the temperature (in K) of 16.45 moles of methane gas in a 4.95 L container at 4.68 atm?
AlexFokin [52]
Using the ideal gas law: PV=nRT
      P is pressure; V is volume; n is the amount in moles; R=0.082; T is temperature in K.

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4 0
4 years ago
Which of the following quantities contains the greatest number of particles?
Nadya [2.5K]
I believe the correct answer would be the last option. All of the quantities given above contain the same number of particles. We determine this by using the avogadro's number. It represents the number of units in one mole of any substance. This has the value of 6.022 x 10^23 units / mole. 

2 moles of carbon atoms ( 6.022 x 10^23 particles / mole  ) = 1.20 x10^24 particles
<span>
2 moles of carbon dioxide molecules </span>( 6.022 x 10^23 particles / mole  ) = 1.20 x10^24 particles<span>

2 moles of diatomic oxygen molecules </span>( 6.022 x 10^23 particles / mole  ) = 1.20 x10^24 particles

As you can see, no matter what is the gas as long as they have the same number of moles, they would also have same number of particles<span />
3 0
3 years ago
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