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katovenus [111]
3 years ago
8

How many minutes does light from the sun reach earth

Chemistry
1 answer:
Akimi4 [234]3 years ago
6 0

Answer:

8 mins and 20 secs

Explanation:

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Which of the following is/are true?
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Answer is D. All of the above

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What is the agent that causes frost wedging?
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Freeze wedging is caused by the repeated freeze-thaw. Frost wedging occurs as the result of 9% expansion of water when it is converted to ice. Cracks filled with water are forced further apart when it freezes.

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18. The mass of a quantity of NiCl2 is 24.6 g. How many formula units are in the sample?
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n(NiCl₂) = 0.19 mol; amount of nickel(II) chloride.

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N(NiCl₂) = n(NiCl₂) · Na.

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N(NiCl₂) = 1.13·10²³; number of formula units.

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a

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