When titrating a strong base with HClO4 at 25°C, the a. pH will be less than 7 at the equivalence point. b. pH will be equal to 7 at the equivalence point. c. pH will be greater than 7 at the equivalence point. d. titration will require more base than acid to reach the equivalence point.

Wish i can but don’t know this

No. an alpha particle is a pair of protons and a pair of neutrons, i.e. a helium

Use a magnet to separate iron, evaporate water, i'm not sure how to separate the other two i'm sorry but good luck

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.