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11111nata11111 [884]
3 years ago
15

How is the oxidation state of a transition metal determined from the chemical formula ?

Chemistry
2 answers:
asambeis [7]3 years ago
8 0

Answer: The subscript of the second ion identifies the oxidation state of the transition metal

Explanation: Apex

Vera_Pavlovna [14]3 years ago
7 0

Answer:

Explanation:

In a chemical formula, the oxidation state of transition metals can be determined by establishing the relationships between the electrons gained and that which is lost by an atom.

We know that for compounds to be formed, atoms would either lose, gain or share electrons between one another.

The oxidation state is usually expressed using the oxidation number and it is a formal charge assigned to an atom which is present in a molecule or ion.

To ascertain the oxidation state, we have to comply with some rules:

  • The algebraic sum of all oxidation numbers of an atom in a neutral compound is zero.
  • The algebraic sum of all the oxidation numbers of all atoms in an ion containing more than one kind of atom is equal to  the charge on the ion.

For example, let us find the oxidation state of Cr in Cr₂O₇²⁻

This would be:  2x + 7(-2) = -2

                          x = +6

We see that the oxidation number of Cr, a transition metal in the given ion is +6.

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Answer:

Missing component

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Explanation:

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Solution:

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if we look at the reactants and products there is one element is in product side but not shown in the reactant side.

In products there are following atoms

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Now balance the equation

          Cl₂ + 2 NaBr -----→ 2NaCl + Br₂

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____________

Reaction 2

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if we look at the reactants and products there are two element in product side but not shown in the reactant side.

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O (Oxygen)

H (Hydrogen)

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Mg (Magnesium)

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if we put water molecule (H₂O) in the reactant then this reaction will be complete

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in this reaction magnesium (Mg) react with water (H₂O) and give magnesium oxide and hydrogen gas.

So, the missing component is

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