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Kipish [7]
3 years ago
5

What types of properties change during a chemical reaction?

Chemistry
2 answers:
ryzh [129]3 years ago
4 0
The chemical composition 

vladimir2022 [97]3 years ago
4 0
Change in color
production of gas
formation of precipitate
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What is the mass in grams of 0.7350 moles of sodium?
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Answer:

Explanation:

1 mol of sodium = 23 grams (use the number on your periodic table).

0.7350 mol sodium = x

Cross multiply

1*x = 0.7350 * 23

x = 16.905

You will get slightly less than this, depending on your periodic table. But the method will be the same.

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Metals react by losing valence electrons. Which of the alkali metals loses its valence electrons most easily? Explain.
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Score! You manage to find a bottle of bromothymol blue and a few extra beakers. You take one of the empty beakers and add some o
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Answer:

You manage to find a bottle of bromothymol blue and a few extra beakers. You take one of the empty beakers and add some of the first unlabeled solution and some indicator.

The color changes to yellow.

You then add some solution from the other unlabeled flask into this beaker and see the color change to blue.

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Explanation:

Bromothymol blue is a dye and it is used as an indicator.

It is used as a pH indicator.

In acids, it becomes yellow n in color.

In bases, it turns blue.

You take one of the empty beakers and add some of the first unlabeled solution and some indicator. The color changes to yellow.

That means the unlabeled solution is an acid.

You then add some solution from the other unlabeled flask into this beaker and see the color change to blue.

It is a basic solution.

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Describe how you would crystallise potassium nitrate from its aqueous liquid?
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What is the process of photosynthesis<br>​
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Explanation:

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