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motikmotik
3 years ago
14

Elements are organized on the periodic table by there atomic mass true or false?

Chemistry
2 answers:
lord [1]3 years ago
8 0

Answer:

That's false.

Explanation:

The elements are organized by atomic number, not atomic mass. The atomic mass measure is inaccurate in one case. Iodine (53) has a smaller atomic mass than tellurium (52) (126.9 compared to 127.6.), although it is the element after tellurium.

Colt1911 [192]3 years ago
3 0

Answer:

true

Explanation:

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How is an element different than a compound? Give an example of each
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Calculate the solubility (in M) of cobalt(II) hydroxide, Co(OH)2(s) in H2O. Ksp = 1.10×10-16 at a specific temperature.
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Answer:

3.018 x 10⁻⁶ M.

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<em>Co(OH)₂ →</em> <em>Co²⁺ + 2OH⁻.</em>

<em></em>

<em>∵ Ksp = [Co²⁺][OH⁻]² = (s)(2s)² = 4s³.</em>

<em />

∴ 4s³ = 1.10 x 10⁻¹⁶.

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