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777dan777 [17]
3 years ago
7

A swimmer is moving at a speed of 2.0 meters/second. How long will it take for the swimmer to go 100 meters?

Chemistry
1 answer:
gayaneshka [121]3 years ago
3 0
50 seconds because 100 divided by to is 50 and if she’s moving 2 meters a second it would take 50 seconds to go 100 meters p.s pls give me branliest
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Answer:

1134

Explanation:

(the ones place was rounded up). 1133.981 is the unrounded answer.

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Describe why it is important that scientific experiments be repeated
defon

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Scientific experiments need to be repeated so that scientists can make sure the results are as accurate as possible.

Explanation:

The point of a scientific experiment is to find the answer to a question. If a scientist performs an experiment only one time, they might find an answer to their question. However, they might have messed something up, so the answer is completely wrong. Doing an experiment momre than once can help a scientist make sure that their answer is correct. I hope this helps!

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Answer:

The answer to your question is: 17.26% of carbon

Explanation:

Data

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BaCO₃ = 0.6006 g

Molecular mass BaCO₃ = 137 + 12 + 48 = 197 g

Reaction

                    CO₂  +  Ba(OH)₂  ⇒   BaCO₃  +  H₂O

Process

1.- Find the amount of carbon in BaCO₃

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                               0.6006 g           ----------------    x

                               x = (0.6006 x 12) / 197

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2.- Calculate the percentage of carbon in the organic compound

           0.2121 g of organic compound  ---------------  100%

           0.0366g                                       --------------    x

                              x = (0.0366 x 100) / 0.2121

                              x = 17.26%

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