Answer:
The structure is shown in the figure.
Explanation:
There is condensation polymersiation in case of lactic acid with the removal of water molecule (dehydration) leading to formation of poly lactic acid.
The structure of PLA is shown in the figure.
Exothermic type of reaction is taking place because this type of reaction generates heat energy.
<h3>What is exothermic reaction?</h3>
Exothermic reactions refer to those chemical reactions that produce heat energy and release that heat energy to the surrounding environment.
So we can conclude that exothermic type of reaction is taking place because this type of reaction generates heat energy.
Learn more about reaction here: brainly.com/question/26018275
2-ethyl-4,4 -dimethyl hex-1-ene.
Answer:
Mass = 3.84 g
Explanation:
Given data:
Mass of hydrogen sulfide = 2.7 g
Mass of oxygen required = ?
Solution:
Chemical equation:
2H₂S + 3O₂ → 2H₂O + 2SO₂
Number of moles of hydrogen sulfide:
Number of moles = mass/ molar mass
Number of moles = 2.7 g / 34 g/mol
Number of moles = 0.08 mol
Now we will compare the moles of hydrogen sulfide with oxygen.
H₂S : O₂
2 : 3
0.08 : 3/2 ×0.08 = 0.12 mol
Mass of oxygen;
Mass = number of moles × molar mass
Mass = 0.12 mol × 32 g/mol
Mass = 3.84 g
Answer :
(a) Reaction at anode (oxidation) :
(b) Reaction at cathode (reduction) :
(c) 
(d) Yes, we have have enough information to calculate the cell voltage under standard conditions.
Explanation :
The half reaction will be:
Reaction at anode (oxidation) :

Reaction at cathode (reduction) :

To balance the electrons we are multiplying oxidation reaction by 4 and then adding both the reaction, we get:
Part (a):
Reaction at anode (oxidation) :

Part (b):
Reaction at cathode (reduction) :

Part (c):
The balanced cell reaction will be,

Part (d):
Now we have to calculate the standard electrode potential of the cell.


For a reaction to be spontaneous, the standard electrode potential must be positive.
So, we have have enough information to calculate the cell voltage under standard conditions.