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Ray Of Light [21]
3 years ago
15

Please help me. Can you explain energy principle level?

Chemistry
1 answer:
Likurg_2 [28]3 years ago
8 0
<span>Rules for the Principal Energy Level. A principal energy level may contain up to 2n2 electrons, with n being the number of each level. The set of three p orbitals can hold up to 6 electrons. Thus, the second principal energy level can hold up to 8 electrons, 2 in the s orbital and 6 in the p orbital.</span>
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Which of the following shows the valency of 1?
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Leave the answer blank if no precipitate will form. (Express your answer as a chemical formula.) Formula of precipitate ZnCl2(aq
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Answer:

1. Zn(OH)₂ (s)

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ZnCl₂(aq) + 2KOH(aq) → Zn(OH)₂ (s)  +  2KCl (aq)

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NaCl(aq) + KNO3(aq) → NO REACTION

All salts from nitrate are soluble

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All salts from carbonates are insoluble

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