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Zarrin [17]
3 years ago
6

C. in the reaction of copper and silver nitrate, a new substance appeared in the test tube. describe the physical appearance of

the substance and identify its chemical formula
Chemistry
1 answer:
forsale [732]3 years ago
6 0
Cu(s) + 2AgNO₃(aq) = Cu(NO₃)₂(aq) + 2Ag(s)

The solution of copper(II) nitrate and metallic silver formed in the reaction. 

Colourless solution becomes blue due to the formation of the copper (II) aquacomplex.

Cu²⁺ + 4H₂O = [Cu(H₂O)₄]²⁺
                            blue

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<h2><u>Answer</u> :</h2>

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How many moles of zinc are there in 0.890 g of zinc?
NNADVOKAT [17]

Answer:

There are  

4.517

⋅

10

23

atoms of Zn in 0.750 mols of Zn.

Explanation:

Since we know that there are  

6.022

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23

atoms in every mole of a substance (Avogadro's Number), there are  

6.022

E

23

⋅

0.750

atoms of Zn in 0.750 mols of Zn.

4 0
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Read 2 more answers
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