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Tju [1.3M]
3 years ago
6

Which answer choice correctly describes the gas law and physical changes represented by the image?

Chemistry
2 answers:
vazorg [7]3 years ago
8 0
A. The image shows Boyle’s law because volume increases as pressure increases
skelet666 [1.2K]3 years ago
5 0

Answer:

<h2>A. The image shows Boyle's Law because volume decreases as pressure increases.</h2>

Explanation:

According to Boyle's Law, at constant temperature, pressure and volume have inverse relation that is as pressure would increase, volume would decrease.

According to Charles Law, at constant pressure, the volume is directly proportional to temperature.

According to the given graph and diagram, the temperature is constant and volume and pressure have inverse relation.

Thus, option A is correct.

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Cho 4g CuO vào dung dịch axit clohidric 10% thì phản ứng vừa đủ.
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Explanation:

a. CuO+ 2HCl⇒CuCl2+ H2O

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c. n_{HCl}=2× n_{CuO}=0,1 (mol)

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⇒m_{dd HCl}= \frac{m_{HCl}}{10}×100=36,5 (g)

⇒ Nồng độ phần trăm dd sau phản ứng= Nồng độ % dd CuCl2=\frac{m_{CuCl2} }{m_{dd HCl+ m_{CuO} } }×100=\frac{6,75}{36,5+4} ×100≈ 16,67%

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