Cr2O7-2 + OH- = ?????????

4 ⤊

Cr2O7-2 + OH- = ?????????

2006-12-17 17:48:02 · 4 answers · asked by 3.141592653589793238462643383279 3 in Science & Mathematics ➔ Chemistry

4 answers

Its a redox reaction.

Cr2O7-2 + 2OH- = 2CrO4-2 + H2O

2006-12-17 20:36:03 · answer #1 · answered by Som™ 6 · 2⤊ 1⤋

The correct answer is 2CrO4 -2 + H2O

For example, K2Cr2O7 + 2NaOH = K2CrO4 + Na2CrO4 + H2O

Or in plain English, dichromate + hydroxide = chromate + water

2006-12-17 23:03:45 · answer #2 · answered by Anonymous · 2⤊ 0⤋

I am not sure but could be....
Cr2O7-2 + 2OH- = H2Cr2O7 + O2
Why do you have this in the form of ions?
It could look like this H2Cr2O7 + 2NaOH = Na2Cr2O7 + 2H2O

2006-12-17 21:49:02 · answer #3 · answered by krucha 2 · 0⤊ 2⤋

what the heck is this?
are you sure is correct?

2006-12-17 17:54:56 · answer #4 · answered by dexter 3 · 0⤊ 2⤋