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Arisa [49]
3 years ago
5

How are electrons similar and different to the planet Earth?

Chemistry
1 answer:
vaieri [72.5K]3 years ago
4 0

Answer:

The planets themselves are composed of several trillions or quadrillions or more atoms. As far as hard science is concerned, it would be really hard to picture them as electrons. Conclusion: It can be said with a great accuracy that our planets are NOT huge electrons.

Rutherford's experiments showed that the mass of atoms was mostly concentrated in a very small region, with charge equal to the atomic number- the nucleus. He absolutely did not show, nor is it true, that electrons orbit the nucleus as if they were planets. That was a guess people made in trying to figure out how to picture the atom.

(Hope this helps) Sky

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Answer:

pH = 2.66

Explanation:

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First we <u>calculate the number of moles of each reactant</u>, using the <em>given volumes and concentrations</em>:

  • 0.75 M Acetic acid * 50.0 mL = 37.5 mmol acetic acid
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We<u> calculate how many acetic acid moles remain after the reaction</u>:

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We now <u>calculate the molar concentration of acetic acid after the reaction</u>:

27.5 mmol / (50.0 mL + 10.0 mL) = 0.458 M

Then we <u>calculate [H⁺]</u>, using the<em> following formula for weak acid solutions</em>:

  • [H⁺] = \sqrt{C*Ka}=\sqrt{0.458M*1.76x10^{-5}}
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8 0
3 years ago
The density of water is 1.0gcm3 at 4∘C. What is the mass of 15mL of water at this temperature?
muminat

Answer:

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Answer:

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3 years ago
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