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Nookie1986 [14]
3 years ago
6

How is alchemy different from modern chemistry?

Chemistry
2 answers:
juin [17]3 years ago
8 0

Answer:

C. Alchemy is not scientific, but chemistry is based on evidence.

Explanation:

Alchemy was based on mystical beliefs instead of the scientific method.

Chemistry is the study of matter and change based on evidence.

Anit [1.1K]3 years ago
3 0
The answer to this is C
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Can someone please answer this?
Amanda [17]

Answer:-

0.229 L

Explanation:-

Molar mass of AgBr = 107.87 x 1 + 79.9 x 1

=187.77 grams mol-1

Mass of AgBr = 150 grams

Number of moles of AgBr = 150 grams / 187.77 gram mol-1

= 0.8 mol

The balanced chemical equation is

NaBr (aq) + AgNO3 (aq)--> AgBr(s) + NaNO3(aq)

From the equation we can see that

1 mol of AgBr is produced from 1 mol of AgNO3.

∴ 0.8 mol of AgBr is produced from 1 x 0.8 / 1 = 0.8 mol of AgNO3.

Strength of AgNO3 = 3.5 M

Volume of AgNO3 required = Number of moles / strength

= 0.8 moles / 3.5

=0.229 L

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3 years ago
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FromTheMoon [43]

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D

Explanation:

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rjkz [21]

Explanation:

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Briefly describe the movement of water through the water cycle
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The water cycle (hydrological cycle) is the continuous movement of water all around the Earth.


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HCl, NaCl, and CO are all examples of chemical <br> properties<br> bonds<br> formulas<br> changes
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HCL, NACL and CO are the examples of chemical formulas

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