Here is the picture of question 1:

d

explanation:

the higher the instrument the better

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.

not sure if this what   you'r looking for would be percent composition

b. read the phase at the intersection of any given temperature and pressure.