Answer:
A) Three pi bonds break; two sigma bonds and one pi bond form.
Explanation:
Diels Alder reaction -
It is one of the chemical reaction , where the reaction of a substituted alkene and a conjugated diene takes place , is referred to as the diel alder reaction .
Where the substituted alkene is referred to as the dienophile .
Hence , it is also known as diene - dienophile reaction.
The mechanism followed by the reaction is same as for pericyclic reaction , in this reaction , there is breakage of three pi bond and the formation of one pi an two sigma bond.
Answer:
11.9 g S
General Formulas and Concepts:
<u>Chem</u>
- Reading a Periodic Table
- Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.
- Dimensional Analysis
Explanation:
<u>Step 1: Define</u>
2.23 × 10²³ atoms S
<u>Step 2: Define conversions</u>
Avogadro's Number
Molar Mass of S - 32.07 g/mol
<u>Step 3: Dimensional Analysis</u>
<u /> = 11.8758 g S
<u>Step 4: Check</u>
<em>We are given 3 sig figs. Follow sig fig rules.</em>
11.8758 g S ≈ 11.9 g S
Answer:
im not sure go with the first
Explanation:
Answer:
x = 2+
Explanation:
1) FADH2 + Q => FAD + QH2
Since H is added to Q
=> Reactant reduced is Q
(2) Balancing charges on both sides of the equation gives:
QH2 + 2 cyt c(Fe3+) => Q + 2 cyt c(Fe2+) + 2 H+
Thus x = 2+