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mixer [17]
3 years ago
7

Which 0.1 M aqueous solution is the best conductor of electricity /12561947/e9552934?utm_source=registration

Chemistry
1 answer:
Andrej [43]3 years ago
3 0
Above question is incomplete. Complete question is:
<span>Which 0.1-molar aqueous solution is the best conductor of electricity? (1) H2S (2) H2SO4 (3)HF (4)H3PO4?
...........................................................................................................................

Answer: Correct answer is option 4, i.e. H3PO4.

Reason:
Each molecule of H3PO4 on dissociation will generate 4 ions (three H+ ions and one PO4 3-ion). On other hand, H2SO4 and HF will generate three and two ions respectively. H2S is a covalent compound, and will not generate any ions in solution. Due to largest number of ions, 0.1 M H3PO4 solution will have maximum conductivity. Hence, it will be the best conductor of electricity. 

</span>
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If Jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, _____... is being
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<u>Answer;</u>

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<u>Explanation;</u>

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3 years ago
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Use electron configurations to account for the stability of the lanthanide ions Ce⁴⁺ and Eu²⁺.
Citrus2011 [14]

Answer:

Explanation:

 The Ce metal has electronic configuration as follows

[Xe] 4f¹5d¹6s²

After losing 4 electrons , it gains noble gas configuration ,. So Ce ⁺⁴ is stable.

Eu  has electronic configuration as follows

[ Xe ] 4 f ⁷6s²

[ Xe ] 4 f ⁷

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Ce⁺²

7 0
4 years ago
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Korolek [52]

Answer:

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8 0
2 years ago
A compound was found to be soluble in water. It was also found that addition of acid to an aqueous solution of this compound res
gogolik [260]

Answer:

c. Cr

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therefore,  Cr would form a precipitate when added to an aqueous solution of this compound. Cr2CO3 is the precipitate.

3 0
3 years ago
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