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tigry1 [53]
3 years ago
10

Describe the changes that earths atmosphere has gone to overtime

Chemistry
1 answer:
irakobra [83]3 years ago
8 0

Answer:

Over a vast amount of time, millions of years, the earth gradually cooled. When the temperature dropped enough, water vapor condensed and went from a gas to liquid form. This created clouds. From these clouds, the oceans formed and the oceans absorbed a lot of the carbon dioxide in the atmosphere.

Explanation:

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The list which represents the

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<h3>Skeleton</h3>

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The skeleton is divided into 2 parts:

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4 0
2 years ago
How many kJ of heat are required to melt 35.0 g of ice?
Verizon [17]
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5 0
3 years ago
When molecules have a shorter bond length does it take more or less energy to break the chemical bond between those atoms?
Sloan [31]

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more energy

Explanation:

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7 0
3 years ago
the half life of a certain element is 100 days. how many half-lives will it be before only one-fourth of this element reamains
Rama09 [41]

Answer:

200 Days

Explanation:

Usually not so good in chemistry, but this is math!

Half life means in this time half goes away.  What happens when two half lives pass?  half of what was remaining goes away.  Maybe an example will make it more clear.

Say we start with 100 grams.  After the amount of time for the half life to pass completes, we have 50, or half of the original amount.  The half life time passes again and THAT gets cut in half to 25 grams.  this is 1/4 of the original (Hey, what we're looking for.)  Just to make it clear what is happening after another half life 1/8 remains, so it goes from The starting amount to 1/2 to 1/4 to 1/8 and so on, it keeps getting cut in half.

So how many times do we have to cut 1 in half until we get to 1/4?  Twice as was shown before.  Now, two half lives for this element is what?  100+100 days.  So 200 Days.

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What type of work do u have? LOL

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8 0
3 years ago
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