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Andreas93 [3]
4 years ago
5

Chemical reactions can be described in terms of what quantities

Chemistry
1 answer:
aivan3 [116]4 years ago
4 0
<span>When a chemical equation is balanced, as in, molecules, moles, atoms, volume and mass, it occurred in different quantities. Atoms and mass are conserved in every chemical reaction. An insufficient amount of any of the reactants will limit the amount of product that forms.</span>
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Acetaldehyde shows two UV bands, one with a lmax of 289 nm ( 5 12) and one with a lmax of 182 nm ( 5 10,000). Which is the n p*
UkoKoshka [18]

Answer:

The bands are due to:

λmax = 289 nm n→π* transition (E = 12)

λmax = 182 nm π→π* transition (E=10000)

Explanation:

The two types of acetaldehyde transition are as follows:

n→π* and π→π*

From the attached diagram we have to:

ΔEn→π* < ΔEπ→π*

ΔEα(1/λ)

Thus:

λn→π* > λπ→π*

In n→π* spin forbidden, the intensity is low. Thus, the molar extinction E for n→π* is very low.

The same way, for π→π* spin allowed the intensity is high. Thus, the molar extinction coefficient E for π→π* is high too.

The bands are due to:

λmax = 289 nm n→π* transition (E = 12)

λmax = 182 nm π→π* transition (E=10000)

5 0
3 years ago
Someone help me please, I will give you brainliest
Nikitich [7]

Answer:

conserve mass.

Explanation:

3 0
4 years ago
As an environmental engineer how would you apply the process of separating mixtures to clean up a polluted beach? What would you
nikdorinn [45]
I did this already and i put this down :3 <span>first you would separate each part of the beach into three zones one for basic cleaning another for harder work and then animal searching and cleaning and release, after that you would begin to work on the sections one by one using certain tools and a large amount of effort being used, then finally you end with a cleaned up beach clean water and safe animals and happy faces from people as well.</span>
6 0
3 years ago
I don’t understand what its means
docker41 [41]

Answer:

me neither as well

Explanation:

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What two factors affect the boiling point of water?
pav-90 [236]

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6 0
3 years ago
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