chem problem...please help?

Question

For the complete redox reactions given here, (i) break down each reaction into its half-reactions, (ii) identify the oxidizing agent, (iii) Identify the reducing agents

(a) 2Sr + 02 ------> 2SrO
(b) 2 Li + H2 ------> 2LiH
(c) 2Cs + Br2 -----> 2CsBr
(d) 3Mg + N2 ------> Mg3N2

Answer 1

wow. I apologize for some peoples rudeness! even if this is a homework question, its not like you are asking for every single problem. This is the purpose of yahoo answers...to help people out so they better understand the material.

a)
Sr + e --> Sr+
O2 --> 2O2- + 2e
O.A.: O2
R.A.: Sr

b)
Li --> Li+ + e
H2 +2e --> 2H-
O.A.: H2
R.A.: Li

c)
2Cs --> 2Cs+ + 2e
Br2 +2e --> 2Br-
O.A.: Br2
R.A.: Cs

d)
3Mg --> 3Mg2+ + 6e
N2 + 6e --> 2N(3-)
O.A.: N2
R.A.: Mg

good luck with your class!!

Answer 2

I think you are supposed to do your own homework. Don't you have textbooks or something?

Answer 3

You need to do your own homework.