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Kazeer [188]
3 years ago
5

Which of the following explains how electricity flows? Protons flow from the positive end of a source towards the negative end.E

lectrons flow from the negative end of a source towards the positive end.
Protons flow from the negative end of a source towards the positive end.


Electrons flow from the positive end of a source towards the negative end.

Chemistry
1 answer:
zalisa [80]3 years ago
7 0
I know for a fact the answer would (not) be the last option. This would not be a way that electricity would be able to really flow.

Your correct answer would be of when the "e<span>lectrons flow from the negative end of a source towards the positive end."

This would be because when the electrons would be free, they would have enough energy to then move from the negative side of the end, to the positive side.</span>

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FinnZ [79.3K]
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3 years ago
A solution is made by mixing 36. g of heptane (C_7H_16) and 16. g of chloroform (CHCl_3). Calculate the mole fraction of heptane
Diano4ka-milaya [45]

Answer:

Mole fraction of solute (heptane) → 0.73

Explanation:

Mole fraction = Moles of solute or solvent / Total moles

Let's calculate the moles of everything:

Moles of solute → Mass of solute / Molar mass

36 g / 100 g/mol = 0.36 moles

Moles of solvent → Mass of solvent / Molar mass

16 g / 119.35 g/mol = 0.134 moles

Total moles = 0.36 + 0.134 = 0.494 moles

Mole fraction of solute = 0.36 / 0.494 → 0.73

8 0
4 years ago
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4 years ago
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Talking about Water turning to ice I would say it’s all about physical change and not chemical change.
But I would suggest you to either make a research about it or ask your teacher :))
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5 0
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