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Aleksandr [31]
3 years ago
11

Many food chains together create a______

Chemistry
1 answer:
Amanda [17]3 years ago
3 0
Many food chains together create a food web.


hope this helps,, have a nice day :))
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Ergosterol, a precursor of vitamin D, has δmax = 282 nm and molar absorptivity ε = 11,900 M-1cm-1. What is the concentration of
meriva

Answer:

3.6 × 10⁻⁵ M

Explanation:

Ergosterol has a maximum absorbance at λ = 282 nm. The absorbance of an analyte is related to its concentration through the Beer-Lambert's law.

A = ε × <em>l</em> × c

where,

A: absorbance

ε: molar absorptivity

<em>l</em>: optical path length

c; molar concentration

c = A / ε × <em>l </em>= 0.43 / (11,900 M⁻¹cm⁻¹) × 1.00 cm = 3.6 × 10⁻⁵ M

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Indicate the number of unpaired electrons for following: [noble gas]ns2np5
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Hello!

The compound that forms from potassium and chromate is Potassium Chromate (K₂CrO₄)

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Have a good day!

5 0
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