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2 years ago

In science what can only be separated by Chemical methods

Chemistry

1 answer:

PilotLPTM [1.2K]2 years ago

5 0

Answer:

A mixture is a physical combination of substances thus it only requires physical processes to separate.

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A solution containing 1.0 M NiCl2 and 1.0 M SnBr2 undergoes electrolysis by passing a current between two platinum electrodes. W

scoray [572]

Answer:

Sn2+ (aq) + 2e- → Sn(s) ℰ° = -0.14 V

Explanation:

A close look at all the options shows that the most feasible first reaction is the reduction of tin II ion to ordinary metallic tin.

Given the two half cells, nickel is oxidized in one half cell to Ni II while in the second half cell, tin II ion is reduced to metallic tin. The platinum electrodes simply act as electron conduits in the cell.

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3 years ago

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2 years ago

How many atoms of fluorine are present in a molecule of carbon tetrafluoride, cf4?

Ivanshal [37]

There are four atoms of fluorine present

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2 years ago

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How many grams of NaCL are required to prepare 50ml of a 2.0 molar solution

Ksivusya [100]

Answer:

5.85 gm.

Explanation:

We know that,

Normality = Molarity × Molecular weight

Equivalent weight

Since molecular weight of NaCl= equivalent weight = 23+35.5 =58.5

Normality of NaCl= molarity=2

Now,

Normality= weight in gram ×1000

Volume ×equivalent weight

Weight in gram is given by,

=Normality × Volume × equivalent weight

1000

= 2× 50 × 58.5

1000

=5.85 gm.

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3 years ago

What happens when the temperature of a solution increases?

bazaltina [42]

Answer:

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3 years ago

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In science what can only be separated by Chemical methods​

In science what can only be separated by Chemical methods