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Need Chem help please.?
Multiple answers are possible.
1. Which of the following substances will oxidize Sn(s) to Sn2+?
a. Cu(s) b. Cl2(g) c.Cl-(aq) d. Mg(s) e.Cu2+(aq) f. Mg2+(aq)
2. Which of the following substances will oxidize Cu(s)?
a. Cu(s) b. Cl2(g) c.Br2(aq) d. Mg(s) e.Cu2+(aq) f. Mg2+(aq)
3. Which of the following substances will reduce Br2(aq)?
a. Cu(s) b. Cl2(g) c.Cl-(aq) d. Mg(s) e.Cu2+(aq) f. Mg2+(aq)
4. Which of the following substances will reduce Fe3+(aq) to Fe2+?
a. Cu(s) b. Cl2(g) c.Cl-(aq) d. Mg(s) e.Cu2+(aq) f. Mg2+(aq)
I have 1) b,e 2) b,c 3) a,c,d 4) c,d
Please explain.
1 Answer
- ?Lv 69 years agoFavorite Answer
Chlorine and Bromine are more stable if they can fill their electron shells. They are only missing one, which means they want that extra electron very badly.
Copper and magnesium give up their electrons more easily. Magnesium actually wants to get rid of them, so it would react violently.
"How bad" elements want to gain or lose electrons is given in a table of standard electrode potentials, and determines whether a reaction will occur.
I think 4) is wrong - only solid magnesium should reduce the iron.
