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Luden [163]
3 years ago
12

Which of the following is NOT an example of a chemical change?

Chemistry
2 answers:
puteri [66]3 years ago
5 0
I think it’s C...........
Katyanochek1 [597]3 years ago
4 0

Answer:

hi there !!

B) Water evaporates into steam.

this is correct because only physical state changes, steam can be cooled down to get water again.

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Water has a higher boiling point than acetone does. Which of the following statements about water and acetone in the liquid stat
Semenov [28]

Answer:

Water's boiling point is higher than acetone's one due to the stronger intermolecular forces it has in liquid phase.

Explanation:

Hello.

In this case, since no options are given we can infer from the statement that due to water's higher boiling point than acetone we can conclude that when they are in liquid state, water has stronger intermolecular forces which allow its particles to be held in a stronger way in comparison to the acetone's molecules, for that reason, more energy will be required in order to separate them and promote the boiling process, which is attained via increasing the temperature. Besides, less energy will be required for the separation of the acetone's molecules in order to boil it when liquid, therefore, a lower temperature is required.

In such a way, we can sum up that water's boiling point is higher than acetone's one due to the stronger intermolecular forces it has in liquid phase.

Regards.

7 0
3 years ago
PLEASE HELP!!!
Kaylis [27]
I think it comes from Fungi. I'm not 100% sure about that though.
8 0
2 years ago
According to Newton’s first law of morion when will an object at rest begin to move?
Sati [7]

Hello There!

According to "Newton's First Law" an object at rest will begin to move when it is acted upon an unbalanced force.

Have A Great Day!

Thanks For Using Brainly!

6 0
3 years ago
If the atomic number for oxygen is 8, how
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8 protons are in the nucleus
4 0
3 years ago
Poor precision in scientific measurement may arise from
Arturiano [62]
<span>Based on the experience of the responder, to correctly calculate measurements in real-world. Firstly is to avoid errors as much as possible. Errors are what makes your measurement invalid and unreliable. There are two types of error which is called the systematic error and the random error. Each error has different sources. Words that were mentioned –invalid and unreliable are very important key aspects to determine that your measure is truly accurate and consistent. Some would recommend using the mean method, doing three trials in measuring and getting their mean, in response to this problem.</span>
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