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IRINA_888 [86]
3 years ago
6

Help with question 20

Chemistry
1 answer:
OleMash [197]3 years ago
4 0
For part a), density is g/mL. You have both the g, 300, and the mL, 100, so you simply did 300/100 = 3 g/mL
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How did Bohr describe the arrangement of particles within an atom?
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Answer: A

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What chemical change is magnetizing steel
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Which of the following statements about Avogadro’s Law is false? a. One mole of He occupies 22.4 L at STP. b. At constant P and
Ronch [10]

Answer:

The correct answer to the question which  statements about Avogadro’s Law is false is

c. At constant T and P, doubling the moles of gas decreases the volume by half.

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That is mathematically

\frac{V_{1} }{n_{1} }  =  \frac{V_{2} }{n_{2} }  where

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n₂ = number of moles in second sample

6 0
3 years ago
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aev [14]

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ni are the moles of reactants and products

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Which type of wave do the particles in a medium move parallel to the direction that the waves move
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Longitudinal waves. In a longitudinal wave the particles in the medium move parallel  to the direction waves go. A good example can be the p-waves in an earthquake.
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3 years ago
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