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Kazeer [188]
3 years ago
14

If you could measure the mass of the substances inside the cup before and after the reaction, you would see that the mass decrea

sed over a course of the reaction. Explain the difference.
Chemistry
2 answers:
Shalnov [3]3 years ago
8 0
Gases may have formed during the reaction, released into the air, thus lowering the mass after the reaction of the remaining products.
swat323 years ago
4 0
The difference is the mass of the gases that were formed during the reaction. If the cup is open, it is always the case that the gas would escape. Any reaction that forms a gas as a product is called a gas forming reaction. 
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When multiplying numbers in scientific notation what do you do with exponents?
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Answer:

Subtract them.

Explanation:

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I was actually learned about this in school just found an source.

6 0
3 years ago
From the lists of available reagents select the one(s) you would use to in a preparation of acetophenone (phenyl methyl ketone)
VARVARA [1.3K]

Answer:

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3 0
3 years ago
Under certain conditions the rate of this reaction is zero order in dinitrogen monoxide with a rate constant of 0.0067·Ms−1: 2N2
choli [55]

Answer:

5.6 seconds

Explanation:

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Initial number of moles of N2O = 300 mmol = 300/1000 = 0.3 mol

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k = 0.0067 M/s

Time = 0.0375/0.0067 = 5.6 s

4 0
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Explanation:

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