The combustion of a sample of butane, C4H10 (lighter fluid), produced 2.46 grams of water. 2 C4H10 + 13 O2 -------> 8 CO2 + 10 H2O (a) How many moles of water formed? (b) How many moles of butane burned? (c) How many grams of butane burned? (d) How much oxygen was used up in moles? In grams?

Answers

Answer 1

Answer: we are given with the amount of water produced in the reaction. In this case, we convert this into moles to conveniently find out other values of the compounds. In this case, a)0.1367 moles H20b)0.01367 moles butanec)0.7927 grams butaned)0.1776 moles O2 and 5.69 grams O2

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Stored nuclear energy is converted to electrical energy.

Answers

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Gabriella weighs 450 N. She climbs a flight of stairs to a height of 3 m. It takes her 5 seconds. How much work does Gabriella do when she climbs the stairs?A.
150 J

B.
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D.
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Answers

The formula that can be applied in this problem is W = Fd where W is work, F is the force and d is distance. You have 450N and 3m, all you have to do is to multiply it.

W = Fd

W = (450N) (3m)

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The answer is letter C.

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