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djverab [1.8K]
3 years ago
6

Explain what a compound is and how you can tell one by looking at a chemical formula?

Chemistry
1 answer:
mariarad [96]3 years ago
6 0

Answer:

Explanation:

Chemical Compounds are substances that are made up of 2 or more elements that have reacted to each other through a chemical bond to give a different substance to the initial elements.

The chemical formula is an expression used to indicate the molecular composition of a compound. In other words, it indicates by means of symbols the elements that make up the compounds and their proportion.

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Direct electron transfer from a singlet reduced species to a triplet oxidizing species is quantum-mechanically forbidden
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Direct electron transfer from a a singlet reduced species to a triplet oxidizing species is quantum-mechanically forbidden.

<h3><u>Transfer from singlet to triplet:</u></h3>
  • Either an excited singlet state or an excited triplet state will occur when an electron in a molecule with a singlet ground state is stimulated (through radiation absorption) to a higher energy level.
  • All electron spins in a molecule electronic state known as a singlet are coupled.
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  • The excited electron and ground state electron are parallel in a triplet state because they are no longer coupled (same spin).
  • It is less likely that a triplet state would arise when the molecule absorbs radiation since excitation to a triplet state necessitates an additional "forbidden" spin transfer.

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3 years ago
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