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11Alexandr11 [23.1K]
3 years ago
12

Express in scientific notation. Make sure your answer has the same number of significant figures as the starting value.

Chemistry
1 answer:
frez [133]3 years ago
6 0
The correct response is the second option.
6.1103x10^4. As this was the only answer that had the same number of significant figures as the starting value.
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Percent yield of alum is 38.6%

Explanation:

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Work is equal to the what used and multiplyed by the what over which the force was applied
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W=Fd
Work is equal to the force multiplied by the distance travelled.
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A gas with a volume of 4.0L at a pressure of 205 kPa is allowed to expand to a volume of 12000 mL. What is the pressure in atmos
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Answer: The pressure in atmospheres is 0.674 in the container if the temperature remains constant.

Explanation:

Boyle's Law: This law states that pressure is inversely proportional to the volume of the gas at constant temperature and number of moles.

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P_1V_1=P_2V_2  

where,

P_1 = initial pressure of gas  = 205 kPa

P_2 = final pressure of gas = ?

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205\times 4.0=P_2\times 12  

P_2=68.3kPa=0.674atm        (1kPa=0.0098atm)

Therefore, the pressure in atmospheres is 0.674 in the container if the temperature remains constant.

8 0
3 years ago
The walls in your home have 25mm of expanded polystyrene (R-value 3.96) and 25mm of rigid urethane foam (R-value 7.50). What is
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3.6 per inch

EPS insulation features an average r-value of 3.6 per inch.

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Explanation:

hope this helps

7 0
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Which of these boxes will not accelerate?
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20-20=0

25-25=0

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