# correct

1. ### The correct amu of iron?

Hey, i noticed that in different graphics of the periodic elements Iron has a amu of 55.845, but in others 55.847. Can anyone confirm either one or is it simply a rounding of the number? Thank you for any help.
2. ### Are my oxidation, reduction and balanced equation correct?

I just want to know if the following makes any sense. If it doesn, what am I doing wrong? Oxidation: Mg(s) → Mg2+(aq) +*2e Reduction: Cu2+(aq) + 2e → Cu(s) Balanced equation: 2 Cu3+(aq) + Mg(s) → 2 Cu(s) + 2 Mg2+(aq) Thanks guys in advance!
3. ### Are my oxidation, reduction and balanced equation correct?

I just want to know if the following makes any sense. If it doesn, what am I doing wrong? Oxidation: Mg(s) → Mg2+(aq) +*2e Reduction: Cu2+(aq) + 2e → Cu(s) Balanced equation: 2 Cu3+(aq) + Mg(s) → 2 Cu(s) + 2 Mg2+(aq) Thanks guys in advance!
4. ### Which option is correct?

http://imgur.com/a/xI6x6
5. ### Which structural formula is correct?

Here is my attempt to solve the question. Which drawing is correct, 1,2 or neither? http://www.tiikoni.com/tis/view/?id=6f88953 Thank you in advance for your help.
6. ### Is this MO diagram correct? Copper 2+ (18-crown-6 ether) complex

Hello all! Ive been a long time lurker of these forums, but finally registered to seek help for a problem im stuck on! Ive constructed the following http://i.imgur.com/v2ldA7u.jpg MO diagram for a complex im trying to synthesize. Am I on the right track? The splitting and degeneracy of d...
7. ### Which statement about the behavior of a catalyst is correct?

Which statement about the behavior of a catalyst is correct? (A) A catalyst reacts with the product and shifts the equilibrium to the right speeding up the reaction. (B) A catalyst lowers the activation energy of the original reaction pathway. (C) A catalyst provides additional energy to a...
8. ### correct solvent for testosterone propionate and estadiol benzoate column chrom.

help! i think i used the wrong solvent in my first experiment! the isopropyl alchohol didnt fully dissolve my vacuum filtrate of testosterone propionate and estradiol benzoate mixture. i need to run a column and would love to know what is the proper solvent so i dont have to purchase a bunch of...
9. ### correct structural formula for glycerol?

Which one is correct? http://www.chemistry-reference.com/images/structural/glycerol.png or http://3.bp.blogspot.com/-dYtP2eeRuxc/UQvw7jbBVuI/AAAAAAAAAc0/cPEqPE980Xs/s1600/glycerol2.png
10. ### Please review my calculations for my titration lab and correct me where I'm wrong.

DON'T BOTHER GUISE, I HAVE FOUND MY MISTAKES. HOW THE HECK DO I DELETE THIS ALTOGETHER? Aim: To determine the amount of Fe2+ in a dissolved wire solution. Method: 25cm^3 of a sol. Of iron wire in dilute sulphuric acid(some in the form of Fe3+ and some in the form of Fe2+) was pipetted and...
11. ### Correct if im wrong please

Can you tell me if i am wrong or not im gearing up for a test. Write the net ionic equation LiOH(aq) + HClO2(aq) = LiClO2(s) + H20(aq) Li(aq) + ClO2(aq) = Li(ClO2)(s) NaOH(aq) + HBr(aq) = NaBr(s) + H20(aq) Na(aq) + Br(aq) = NaBr(s) 2K3PO4(aq) + 3NiCl2(aq) = 6KCl(aq) + Ni3(PO4)2(s)...