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Tom [10]
3 years ago
5

Which instrument is directly used to determine the relative masses of atoms?

Chemistry
2 answers:
andriy [413]3 years ago
8 0
It's C ^^ she's right
sdas [7]3 years ago
4 0
(C) the mass spectromer
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A sub-shell with n = 6, l = 2 can accommodate a maximum of:
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Answer:

72

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2n^2

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Misconceptions about psychological disorders ​
exis [7]

Answer:

Explanation:

Misconception #1: Mental illnesses aren't real.

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3 years ago
Question 4 point
Ronch [10]

Answer:

5393.4gH_2O

Explanation:

Hello there!

In this case, for the described chemical reaction, we can write:

CH_4+2O_2\rightarrow CO_2+2H_2O

Thus, by considering the 1:2 mole ratio of methane to water, and the molar mass of the latter (18.02 g/mol), the following is useful to calculate the mass of water that is produced:

149.65molCH_4*\frac{2molH_2O}{1molCH_4} *\frac{18.02gH_2O}{1molH_2O}

Which is equal to:

5393.4gH_2O

Which is not among the choices.

Regards!

5 0
3 years ago
Why is a quantitative observation more useful than a non- quantitative one? Which of the following are quantitative?
daser333 [38]
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(c), watching ice float on water does not involve a measurement; therefore, it must be a qualitative observation.

(d) the fact that we know that the water pump won’t work for depths more than 34 feet makes it quantitative. Again, seeing numbers is a giveaway that it’s a quantitative <span>observation. Quantitative is where you deal with numbers.</span>
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3 years ago
Find out the reasons why hydrogen is not used as a fuel although it has very high calorific value.
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Although hydrogen has the highest calorific value, it is not used as a domestic fuel. It is because hydrogen is a highly combustible and it reacts explosively when it comes in contact with air. And hence as a result, storing of the hydrogen gas is difficult and is dangerous at the same time.

3 0
3 years ago
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