2 years ago

What happens if the earth was with no water on the surface?

Chemistry

2 answers:

algol [13]2 years ago

8 0

We would literally die

snow_lady [41]2 years ago

3 0

We would <em>die </em> of dehydration

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3 years ago

How many electrons would be transferred in either a voltaic or electrolytic cell that uses the following half reactions

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Numbers of electrons transferred in the electrolytic or voltaic cell is 6 electrons.

Explanation:

$Fe^{3+} (aq) + 3 e^-\rightarrow Fe (s) ,E^o = -0.036 V$

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The substance having highest positive reduction $E^o$ potential will always get reduced and will undergo reduction reaction.

Reduction : cathode

$Fe^{3+} (aq) + 3 e^-\rightarrow Fe (s) ,E^o = -0.036 V$ ..[1]

Oxidation: anode

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Oxidation reaction occurs at anode and reduction reaction occurs at cathode.

To calculate the $E^o_{cell}$ of the reaction, we use the equation:

$E^o_{cell}=E^o_{red,cathode}-E^o_{red,anode}$

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The overall reaction will be:

2 × [1] + 3 × [2] :

$2Fe^{3+} (aq) + 3Mg(s)+6e^-\rightarrow 2Fe (s)+3Mg^{2+}(aq)+6e^-$

Electrons on both sides will get cancelled :

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Numbers of electrons transferred in the electrolytic or voltaic cell is 6 electrons.

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3 years ago

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2 years ago