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Andre45 [30]
3 years ago
13

The system of electrons surrounding the nucleus of an atom

Chemistry
1 answer:
Mashutka [201]3 years ago
5 0
Shielding electrons
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How does a heat affect the chemical reaction? ​
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Increasing the temperature increases reaction rates because of the disproportionately large increase in the number of high energy collisions. It is only these collisions (possessing at least the activation energy for the reaction) which result in a reaction.

Explanation:

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Hydrogen bonds form between neighboring water molecules because of ________. A. electron transfer B. electron sharing C. the vis
Oduvanchick [21]

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Answer is B.

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3

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An electrochemical cell has the following standard cell notation.
icang [17]

The cell notation is:

Mg(s)|Mg^{+2}(aq)||Ag^{+}(aq)|Ag(s)

here in cell notation the left side represent the anodic half cell where right side represents the cathodic half cell

in anodic half cell : oxidation takes place [loss of electrons]

in cathodic half cell: reduction takes place [gain of electrons]

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E^{0}_{Mg}=-2.38V

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E^{0}_{cell}=0.80-(-2.38)=+3.18V

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ΔG^{0}=-nFE^{0}

As reaction is spontaneous and there will be conversion of chemical energy to electrical energy it is a galvanic cell.

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