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Alika [10]
3 years ago
13

Write an equation that shows the formation of a manganese(II) ion from a neutral manganese atom.

Chemistry
2 answers:
GalinKa [24]3 years ago
6 0

Answer:

Mn  Mn2+ + 2 e-

Since manganese is a transition metal, it is not possible to predict its ion charge from its group number. The charge on the ion is given by the roman numeral in its name. The charge is therefore +2

The symbol for the manganese(II) ion is therefore Mn2+ .

Mn has an atomic number of 25 , with 25 protons and 25 electrons in the neutral atom. In order for the ion to carry a charge of +2 it must have 2 more protons than it does electrons, so the atom must lose 2 electrons .

Explanation:

bixtya [17]3 years ago
4 0

Answer:

Mg ---> Mg²⁺+ + 2e⁻

Explanation:

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________________ are a lot like gases, but the atoms are different because they are made up of free electrons and ions of the el
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plasma

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3 0
3 years ago
What is the change in enthalpy when 4.00 mol of sulfur trioxide decomposes to sulfur dioxide and oxygen gas? 250 2(g) + O2(g) ®
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The standard enthalpy of formation or standard heat of formation of a compound is the change of enthalpy during the formation of 1 mole of the substance from its constituent elements, with all substances in their standard states.

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Reversing the reaction, changes the sign of \Delta H

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On multiplying the reaction by 2, enthalpy gets multiplied by 2:

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