The density of solid matter is calculated by the equation ___ and is measured in___ a mass/volume; g/cm3. b
mass/volume; g/mL. c
volume mass; g/cm. d
volume mass, g/mL.

The answer is c. 320 g

They are like other investigations? say there was a murder u have to do blood test and finger prints which run through a lab. 

The answer is 4 i don't know if its right let me see.

Answerthe half-reaction having the greatest tendency to occur at the anode:     i₂(aq) + 2e⁻  ⇄ 2i⁻  ;   e = +0.53 v======oxidation occurs at the anode. we must therefore find the half-reaction with the greatest tendency to oxidize.the given values of e are reduction potentials (the form of the half-reactions are of reduction).the lower the reduction potential, the higher the potential to oxidize. the half-cell with the lowest reduction potential will have the greatest tendency to oxidize at the anode.the half-reaction having the greatest tendency must be    i₂(aq) + 2e⁻  ⇄ 2i⁻    e = +0.53 vbecause its reduction potential is the lowest out of the three.