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spayn [35]
3 years ago
12

What ion will be formed by the selenium atom shown below when it has a stable set of valence electrons?

Chemistry
1 answer:
Bas_tet [7]3 years ago
3 0

Answer:

Explanation:

D. Se2−

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A chemist makes up a solution by dissolving 42.0 g of Mg(NO3)2 in enough water to produce a final solution volume of 259 mL. To
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Answer:

The molar mass of Mg(NO₃)₂, 148.3 g/mol.

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Step 1: Given data

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