Asked by Cherry

Among the following, which is an oxidation-reduction reaction?
A. Na2S + CaCO3 → CaS + Na2CO3
B. 2HNO3 + Mg(OH)2 → Mg(NO3)2 + 2H2O
C. H2 + F2 → 2HF****
D. 3Ba(OH)2 + 2H3PO4 → Ba3(PO4)2 + 6H2O
Answered by DrBob222
right. You may want to look at the iron question below. I don't think B is right.
Answered by Cherry
DrBob222 I did see it, I answered to your comment, please see what I wrote :) and thank you for your help :)
Answered by Anonymous
3. Na2S in Oxidation-reduction reactions can be …:
A) reducing agents only
B) oxidizing agents only
C) both reducing and oxidizing agents
D) metals don’t have Oxidation-reduction properties
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