1. Acids have highest concentration of hydronium ions.
2. Bases have highest concentration of Hydroxide ions
3. a. less than 7 b. more than 7
4. Acids (Presence of hydronium ions)
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Divide the grams by 25 to 195 then times it in decimal
I think, the question should by:
When does quenching occur in a chemiluminescence reaction?
Quenching is a process that decreases the fluorescence intensity of any compound while chemiluminescence refers to emission of cold light due to a chemical reaction. Quenching of fluorophore occurs in a chemiluminescence reaction when the fluorescence of the fluorophore is quenched that leads to the decrease in the intensity of the fluorescence.
In terms of energy transfer, quenching occurs when loss of excitation energy of the molecule takes place in a chemiluminescence reaction.
Explanation:
Terminal atoms -
<u>The atoms that are always present at the terminal position , because they have the capability of bonding via one single bond .</u>
hence ,
- Hydrogen atom is a terminal atom , because it can only form one single bond , since , hydrogen has only one electron in its shell , so the octet is completed by sharing that electron with another one electron , and forming a bond .
Therefore , hydrogen atom is considered to be a terminal atom .
- Similarly , Halogens have 7 electrons , hence , to attain noble gas configuration , it require only one electron .Hence , it can form only one single bond .
Therefore , halogen atom is considered to be a terminal atom .
Answer:
37.83 moles
Explanation:
moles = grams / formula weight = 454 grams / 12g/mol = 37.83 moles