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GuDViN [60]
3 years ago
8

Inbox

Chemistry
1 answer:
jeka57 [31]3 years ago
3 0

Answer:

8 oxygen. 9 flourine. 10. Neon. 5 Boron

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Is reacts with acid a chemical or physical property? (WORTH 30 Points.)
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Hydrogen gas is collected over water in an inverted buret. If the atmospheric pressure is 745 mm Hg, the vapor pressure of water
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P_{H_2}=727mmHg

Explanation:

Hello there!

In this case, according to the given data, it is possible to infer that the gas mixture lies on the 15.0 cm-high column of water, so that the total pressure or atmospheric pressure is given by:

P_{atm}=P_{water}+P_{H_2}

Thus, since the atmospheric pressure is 745 mmHg and the vapor pressure of water is 18 mmHg, the pressure of hydrogen turns out to be:

P_{H_2}=P_{atm}-P_{water}\\\\P_{H_2}=745mmHg-18mmHg\\\\P_{H_2}=727mmHg

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