3 years ago

Which of the following best explains the uneven nature of the exposed rock layers

Chemistry

1 answer:

AlexFokin [52]3 years ago

4 0

Answer:

where is the picture?

Explanation:

no picture at all....

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Keith_Richards [23]

Answer:

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Explanation:

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3 years ago

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Fynjy0 [20]

Atomic number should be the answer

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3 years ago

In witch of these examples does chemical energy change to electrical energy

Anuta_ua [19.1K]

D the chemical energy in a batery changes to electrical when its used

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3 years ago

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IgorLugansk [536]

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Explanation:

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3 years ago

A manganese electrode was oxidized electrically. If the mass of the electrode decreased by 225 mg during the passage of 1580 cou

qwelly [4]

Answer:

<u>Oxidation state of Mn = +4</u>

Explanation:

Atomic mass of Mn = 55g/mol

From Faraday's law of electrolysis,

Electrochemical equivalent = $\frac{mass}{charge}$

i.e Z = $\frac{m}{Q}$ = $\frac{0.225g}{1580C}$ = 0.0001424 g/C

But Equivalent weight, E = atomic mass ÷ valency = Z × 96,485

⇒ $\frac{55}{valency}$ = 0.0001424 × 96,485

<u>∴ Valency of Mn = +4</u>

8 0

3 years ago