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Murrr4er [49]
3 years ago
9

Why do some metals lose their shine over time but not gold ?

Chemistry
2 answers:
Ratling [72]3 years ago
4 0
The metals lose their shine because they oxidize but gold does not oxidize so it does not lose shine.
juin [17]3 years ago
3 0
Corrosion. Metals tend to form oxide and over time, they rust. ( 2 FeO(OH) ⇌ Fe2O3 + H2O). <span>Gold and platinum on the other hand are noble metals and remain stable in their pure form. Thus, no electron loss and no oxidation.</span>
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Ksenya-84 [330]

Answer:

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Explanation:

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5 0
3 years ago
In a certain electrolysis experiment, 1.24 g of Ag were deposited in one cell (containing an aqueous AgNO3 solution), while 0.65
eduard

Answer:

The correct answer is 169.56 g/mol.

Explanation:

Based on the given information, the mass of Ag deposited is 1.24 g, and the mass of unknown metal X deposited in another cell is 0.650 g. The number of moles of electrons can be determined as,

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X^3+ (aq) + 3e- = X (s)

From the reaction, it came out that 3 faraday will reduce one mole of X^3+.  

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= 0.650 g/0.0115 *3 mol electron/1 mol

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= 169.56 g/mol

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3 years ago
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Plz help need this ASAP
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option no 4 is correct answer

I hope is helpful

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