# Chemistry

posted by .

The red-ox reaction is MgSO4+2K yields K2 SO4+Mg. I thought the oxidation reaction is 2 k yields K2(subscript) + e^-2. I said the reduction half reaction was Mg+e- yields Mg. Are these correct? Thanks for checking.

• Chemistry -

close but no cigar.
K ==> K^+ + e or if you want to write it double then
2K ==> 2K^+ + 2electrons. Note it is 2e and not e^-2 (e^-2 denote that the electron has a charge of -2 but it has a charge of -1). You could write 2e^-1 if you wish.
Mg^+2 + 2e ==> Mg is the reduction reaction. Note also that I usually write redox and don't use a hyphen but I don't know what you've been taught by your teacher. Follow your teacher's instructions on this.

## Respond to this Question

 First Name School Subject Your Answer

## Similar Questions

1. ### Electrochem

I have a table of standard potentials in water that gives a number of reactions and their e*reduction. Say I'm looking for the reaction Al(s) --> Al+3 + 3e-, but the book gives me the reaction Al+3 + 3e- --> Al(s) and a E*red …
2. ### Chemistry

I'm supposed to balance a redox reaction that occurs in an acidic solution. I already balanced it(h**p://img148.imageshack.us/img148/4304/redoxht8.jpg), but how do I tell if a half-reaction is oxidation or reduction?
3. ### Chemistry

Just wanted to check this. Are the two half reactions for 2K+CaSO4 yields K2SO4+Ca 1K yields K^+1 + e^- and Ca^+2 + e^-2 yields Ca?
4. ### chemistry

MgSO4+2K yields K2SO4+Mg. Would the oxidation reaction be 2K yields K2+e-2?
5. ### chemistry

1)The reaction of methane and oxygen yields carbon dioxide gas and water. The unbalanced reaction is as follows: CH4(g) + O2(g)CO2(g) + H2O(g) A. If 0.718 grams of methane are reacted, how many grams of water vapor are produced?
6. ### Chemistry

Given that E^o = 0.52 V for the reduction of Cu+(aq) + e - (yields) Cu(s) Calculate E^o, (delta)G^o and K for the following reaction at 25°C. 2Cu2+(aq) (yields) Cu2+(aq) + Cu(s)
7. ### Chemistry

In a reaction in which A + B yields AB, the reaction is referred to as a _________. A. decomposition reaction B. double-replacement reaction C. combustion reaction D. composition reaction
8. ### Chemistry...HELP!!!!

In a reaction in which A + B yields AB, the reaction is referred to as a _________. A. decomposition reaction B. double-replacement reaction C. combustion reaction D. composition reaction i think is a
9. ### Chemistry

Consider the following data: * NH3(g) yields 1/2 N2(g) + 3/2 H2(g) delta H = 46kJ * 2 H2(g) + O2(g) yields 2 H2o(g) delta H = -484 kJ Calculate delta H for the reaction: 2 N2(g) + 6 H2O (g) yields 3 O2(g) + 4 NH3(g)
10. ### Chemistry

separate this redox reaction into its component half-reactions. O2 + 4Cu-->2CuO Oxidation half-reaction: ?

More Similar Questions

Post a New Question