THE ALTERNATIVE IS 4.8g alternative c
Answer:
you dony have a picture for me to match them
Explanation:
The answer is B. Cellular Respiration, for sure.
Option (a) is correct.
A reducing agent is the one which loses electrons to other substance.
Here, Zn has oxidation number 0 in the L.H.S of the equation, but on R.H.S its oxidation number is +2 i.e. it Zn has donated two of its electrons to

.
Hence, Zn is the reducing agent here.
it will float because it is not heavy enough