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serious [3.7K]
4 years ago
5

Compounds of Sc3+ are not colored, but those of Ti3+ and V3+ are. Why? 1. Sc3+ is a stable cation. 2. Ti3+ and V3+ are not stabl

e cations. 3. Sc3+ has no electrons in d orbitals. 4. Ti3+ and V3+ have d electrons present. 5. Sc3+ is not a stable cation. 6. Ti3+ and V3+ are stable cations. 7. Sc3+ has one electron in d orbitals. 8. Ti3+ and V3+ have two d electrons present.
Chemistry
1 answer:
chubhunter [2.5K]4 years ago
6 0

Answer:

3

Explanation:

Scandium has no electron on the d orbital. Remember that transition metals have partially filled d orbital and have the ability to form coloured ion

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3 years ago
Given the general chemical equation 3A + 2B → C + 5D,
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Answer :

(a) The number of moles of D produced can be, 6.67 moles.

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Explanation :

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Part (a) :

From the balanced chemical reaction, we conclude that:

As, 3 moles of A react to give 5 moles of D

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Part (b) :

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As, 2\times 22.4L volume of B gives 5\times 22.4L volume of D

As, 9.8 L volume of B gives \frac{5\times 22.4L}{2\times 22.4L}\times 9.8L=24.5L volume of D

Thus, the volume of D prepared can be, 24.5 L

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Rutherford used his gold foil experiment as evidence for a new atomic model. He suggested that the atom contained a small
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