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Citrus2011 [14]
3 years ago
15

Which force keeps planets in orbit around the Sun?

Chemistry
1 answer:
tia_tia [17]3 years ago
8 0
The answer is Gravity !
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Which Of The Following Would Represent An Increase In Entropy
bagirrra123 [75]


I would say C. Since the material is getting warmer, the atoms and molecules will start to move fasten and then also create more "messiness" (which is entropy with a less-nice word)

8 0
2 years ago
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A sample of hydrogen gas at a pressure of 977 mm Hg and a temperature of 32 °C, occupies a volume of 11.3 liters. If the gas is
IrinaK [193]

Answer : The volume of gas sample will be, 9.93 L

Explanation :

Charles' Law : It states that volume of the gas is directly proportional to the temperature of the gas at constant pressure and number of moles of gas.

Mathematically,

\frac{V_1}{T_1}=\frac{V_2}{T_2}

where,

V_1\text{ and }T_1 are the initial volume and temperature of the gas.

V_2\text{ and }T_2 are the final volume and temperature of the gas.

We are given:

V_1=11.3L\\T_1=32^oC=(32+273)K=305K\\V_2=?\\T_2=-5^oC=(-5+273)K=268K

Now put all the given values in above equation, we get:

\frac{11.3L}{305K}=\frac{V_2}{268K}\\\\V_2=9.93L

Therefore, the volume of gas sample will be, 9.93 L

6 0
3 years ago
Scientific theories are usually
jasenka [17]

Answer:

B

Explanation:

Cuz they are supported once discovered and then widely spread then accepted

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3 years ago
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What does continental drift and sea floor spreading have in common
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In the early 1900s, a scientist named Alfred Wegener noticed how the continents seem to fit together and developed the Theory of Continental Drift. Continental drift is the theory that continents can drift apart from one other and have done so in the past. Wegner's theory also explained why fossils of the same plant and animal species are found on both sides of the Atlantic Ocean. In addition similar types of rock and evidence of the same ancient climatic conditions are found on several continents.

Wegner hypothesized that all the separate continents of today were once joined in a single landmass that he called Pangaea.

8 0
3 years ago
Please help! you are amazing! also brainliest :)
Ede4ka [16]

im pretty sure its A if i did all my reasearch right.

hope this helps luv. <3

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2 years ago
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