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Marina CMI [18]
3 years ago
11

Is H-3 stable? Is He-3 stable? Is He-5 stable? Is Li-7 stable? Is Be-7 stable?

Chemistry
1 answer:
kiruha [24]3 years ago
8 0

Answer:

no, yes, no, yes, yes

Explanation:

good luck!

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A logical conclusion based on observations is called an inference.
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ANSWER: True
EXPLANATION: An inference is a logical conclusion based on observations.

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3 years ago
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Given his arrangement of the periodic table, Mendeleev was able to predict three elements that had not yet been discovered. He p
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Answer:

Look in explanation.

Explanation:

Mendeleev has ordered the elements based on increasing atomic mass, he has skipped some elements but assumed that they existed and managed to find the atomic mass of the "unknown" elements.

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3 years ago
In the following problem, which is the unknown quantity?
babunello [35]

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B

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3 years ago
Electrophiles for the electrophilic aromatic substitution reactions have to be very strong to react with the stable aromatic rin
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The detailed mechanism of the reaction is shown in the images attached. The flow of electrons has been shown with arrows. HNO3 is first protonated by H2SO4 this protonated specie H2NO3+ now forms H2O and NO2+.

3 0
4 years ago
Of these nonmetals, which one is likely to be the least reactive?
Reptile [31]

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Sulfur

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Sulfur would be expected the be the least reactive as it has the least Electronegativity than the other non-metals on that list.

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3 years ago
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