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Nikolay [14]
1 year ago
9

Which

Chemistry
1 answer:
ELEN [110]1 year ago
6 0

Answer:

D

Explanation:

Well it clearly had two hydrogens and one oxygen hence H2O,, and valence electrons are shared between the the atoms not transferred which makes it an covalent bond. As for the polar part, I'm not sure how to explain it well, but I has something to do with partially negative and positive charged atoms.

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Under certain conditions Argon gas diffuses at a rate of 3.2 cm per second under the same conditions an unknown gas diffuses at
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Answer:

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Explanation:

We can use <em>Graham’s Law of diffusion</em>:

The rate of diffusion (<em>r</em>) of a gas is inversely proportional to the square root of its molar mass (<em>M</em>).

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If you have two gases, the ratio of their rates of diffusion is

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Squaring both sides, we get

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Solve for <em>M</em>₂:

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M_{2} = \text{39.95 g/mol} \times (\frac{\text{3.2 cm/s}}{\text{4.5 cm/s}})^{2}= \text{39.95 g/mol} \times (0.711 )^{2}

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