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Salsk061 [2.6K]
3 years ago
15

During an experiment, if you purposely change the temperature to test a hypothesis, the temperature is called the _____ variable

. A. manipulated B. responding C. experimental D. dependent
Chemistry
2 answers:
Romashka [77]3 years ago
6 0
<span>During an experiment, if you purposely change the temperature to test a hypothesis, the temperature is called the _____ variable. A. manipulated </span>
ruslelena [56]3 years ago
3 0
It's a manipulated variable so A
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Which statements about the structure of the periodic table are true?
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Answer:

Below are the statements which are true about the structure of the periodic table:

B: The inner transition elements are placed at the bottom of the periodic table for easy viewing.

D: The distribution of electrons in energy levels is responsible for the shape of the periodic table.

Explanation:

Point A:

As we know that in a periodic table there are 7 period s and 18 groups. So, the number of periods is evidently lesser than the number of groups. But the shape of periodic table is regular and rectangular so point A is false.

Point B:

The inner transition elements or -f block elements are put at the bottom for easy viewing. These are the elements that have the valence electrons only  in the f-orbital's. Therefore, they are placed separately at the bottom side of the table so that they can be easily viewed or studied from there. So, point B is true.

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Point D:

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Point E:

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Hope it helps!

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