22: An alloy 20g made up of (AL, Zn and cu) is dipped in an excess 'hydrochloric acid.
Knowing that the percentage by mass of Al was
27% and 6.6 g of residue were
obtained at the end of the reaction.
a. Indicate the redox Couples
b. Compute the mass of each metal
c. Write the half reaction that took place.
d. Deduce the over all equations
e. Compute the volume of the liberated
AL:27 Zn:65 Vm:24
f. Arrange the above couples on the electro
chemical classification

the role of the microscope world in creating new materials .

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.

i believe the answer is true.

i'm wiling to try and you : )