We’re being asked to determine theoxidation state of manganeseinMnO2 (manganese (IV) oxide).
You are watching: What is the oxidation number of manganese in mno2?
The rules for oxidation states are as follows:
A. General Rules:
1. For an atom in its elemental form (Zn, Cl2, C(graphite), etc.) O.S. = 0
2. For an ion (Li+, Al3+, etc.) O.S. = charge
B. Specific Rules:
1. Group 1A O.S. = +1
2. Group 2A O.S. = +2
3. Hydrogen O.S. = +1, with nonmetals
O.S. = –1 with metals and boron
4. Fluorine O.S. = –1
5. Oxygen O.S. = –1 in peroxides (X2O2, X = Group 1A)
O.S. = –1/2 in superoxides (XO2, X = Group 1A)
O.S. = –2 in other compounds
6. Group 7A O.S. = –1 (except when bonded to O)
Since Mn2O3 is neithera peroxide or superoxide,the oxidation state of each oxygen atom is –2.
99% (208 ratings)
What is the oxidation number of manganese in MnO2?
Learn this topic by watchingCalculate Oxidation Numbers Concept Videos
All Chemistry Practice Problems Calculate Oxidation Numbers Practice Problems
See all problems in Calculate Oxidation Numbers
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Calculate Oxidation Numbers concept. You can view video lessons to learn Calculate Oxidation Numbers. Or if you need more Calculate Oxidation Numbers practice, you can also practice Calculate Oxidation Numbers practice problems.
What professor is this problem relevant for?
Based on our data, we think this problem is relevant for Professor Adams' class at TAMU.
LEGAL © 2021 Clutch Learning, Inc. Clutch Prep is not sponsored or endorsed by any college or university.
Log in with Facebook
Log in with Gmail
Don"t have an account? Sign up!.
If you forgot your password, you can reset it.
See more: What Does "Invalid Dim" On A Ti 83 Plus Err Invalid Dim " On A Ti
× Sign up for free to watch this video!
Join thousands of students and gain free access to 46 hours of Chemistry videos that follow the topics your textbook covers.