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sergejj [24]
3 years ago
13

(Help me out )

Chemistry
1 answer:
Anit [1.1K]3 years ago
8 0

Answer:

3) A single specific wavelength

Explanation:

When an electron returns to ground state, it has to emit a single photon.

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01,1.5,1.5,1

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How do biotic factors impact ecological organization?
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Epsom salt is commonly purchased in the pharmacy for a variety of uses, anti-inflammatory, laxative, and cosmetic. epsom salt is
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Epsom salt is MgSO4.
We assume x water of hydration in the crystalline form.

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Molecular mass of MgSO4.xH2O = 120+18x

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Cross multiply
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=6.980

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Note: more accurate (proper) results may be obtained by using exact values (3-4 significant figures) in the molecular masses.  However, since water of hydration is the nearest integer, using approximate values (to at least two significant figures) suffice.
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The atomic number of an atom is based upon the number of​
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