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Readme [11.4K]
3 years ago
11

Plz help meeeeeeee !!!!!

Chemistry
1 answer:
katovenus [111]3 years ago
6 0

Answer:

Na2S

Explanation:

last answer with Na2S

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When an electron move from a high energy level to a low energy, it ______ energy.
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released often as light.

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All elements can be classified as metals, metalloids, or ?
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What term do you use to describe a solutio that has a lower concentration compared to another solution?
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How do you prepare diluted acid from concentrated acid?
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3 years ago
Americans eat too much salt (NaCl). A healthy adult should eat no more than 6 g of salt in one day. Use this information to answ
Rufina [12.5K]

Answer:

a. 58.5 g/mol

b. 0.1 mol

Explanation:

a.

The molar mass of Na is 23.0 g/mol. The molar mass of Cl is 35.5 g/mol. The molar mass of NaCl is:

M(Na) + M(Cl) = 23.0 g/mol + 35.5 g/mol = 58.5 g/mol

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6 g × (1 mol/58.5 g) = 0.1 mol

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3 years ago
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