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aliina [53]
3 years ago
10

What is potential energy?

Chemistry
1 answer:
Andreyy893 years ago
3 0

Answer:B

Explanation: Because you know how the is potential energy and then there is kinetic energy yeah those have to do with movement like a roller coaster

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FromTheMoon [43]
Corresponding in size or amount to something else.
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How many moles and atoms are there in 60 grams of Calcium?
marta [7]

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The moles present in 60 g of calcium are 1.5 moles.

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2 years ago
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A compound is 40.0% c, 6.70% h, and 53.3% o by mass. assume that we have a 100.-g sample of this compound. the molecular formula
atroni [7]
<span>When you have 100 g of compound, then based on the percentages given, there are 40.0 g C, 6.70 g H, and 53.3 g O. Convert those to moles:

</span>C: 40.0 g / 12.0 = 3.33 moles of C 
<span>H: 6.70 g / 1.01 = 6.63 moles of H </span>
<span>O: 53.3 / 16.0 = 3.33 moles of O 
</span>
<span>Dividing by the smallest (3.33), we get a C:H:O mole ratio of 1:2:1
</span>So, <span>The empirical formula is CH2O.
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And we are given it's molar mass is = 240

So, no. of units of CH2O = 240 / 30 = 8

</span><span>8 x CH2O = C8H16O8, and that is the molecular formula.
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C_8H_{16}O_8
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Under which conditions will sugar most likely dissolve fastest in a cup of water
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It will dissolve fastest in a cup of hot water. 
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The diagram shows an electric generator connected to a lightbulb. Not all of
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The lightbulb transforms it into thermal energy.

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