Pagtagram 14. The zinc-copper electrochemical cell shown below is running under standard conditions.
San
ZE
Copper
strip
TOM ZAINOS 10 M CASO,
How would the intensity of light from the bulb change if you were to
a) Dissolve some additional CuSO4(s) in the CuSO. solution?
b) Dissolve some additional Zn(NO3)2() in the Zn(NO) solution?
c) Add H 0 to the Cuso, solution?
d) Remove the salı bridge?
15. Discuss the advantages and dis​

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.