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EastWind [94]
3 years ago
8

Which of the following statements is true?

Chemistry
1 answer:
pashok25 [27]3 years ago
3 0
The answer is longitudinal waves more particles at right angles
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Balence the following equation : _____ NH3 --------> _____ N2 + _____ H2
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2 NH3 -> 1 N2 + 3 H2

Explanation:

That would be the answer to this

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Identify the group of elements that does not readily combine with other elements.
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Noble gases
also known as Inert gases
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3ehehehehe<br> first gets brainlist
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What is 25 m rounded to one significant figure
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Rounded to 1 significant figure, 25 m would go to 30. This is because 0 isn't significant, so the 3 is the only significant figure.

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2 years ago
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Determine how many gmol, kmol, and lbmols there are in 50 kilograms of n-hexane.
Artist 52 [7]

Answer: 581 gmol

0.581 kmol

1.28\times 10^{-3}lbmol

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number 6.023\times 10^{23} of particles.

To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}=\frac{50\times 1000g}{86g/mol}=581mol

1. The conversion for mol to gmol

1 mol = 1 gmol

581 mol= \frac{1}{1}\times 581=581gmol

2. The conversion for mol to kmol

1 mol = 0.001 kmol

581 mol= \frac{0.001}{1}\times 581=0.581kmol

3. The conversion for mol to lbmol

1 mol = 2.2\times 10^{-3}lbmol

581 mol= \frac{2.2\times 10^{-3}}{1}\times 581=1.28\times 10^{-3}lbmol

3 0
3 years ago
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