What is the Oxidation number for Mn3C - manganese carbide?

How did the iodine soluton affect the image of the onin cell? What happens when you mix hydrochloric acids with calcium hydroxide? What is the balance reaction equation of bromine and sodium thiosulfate? Is burning magnesium a physical change? What is the main difference in covalent bonds in diatomic chlorine and diatomic oxygen? What is the process called when a Liquid is converted to a gas? How much of the world is made of water? What chemical hazard poses acute and reproductive toxicity? What is the oxidation numbers of HNO3? How many bonds can carbon form with an atomic number of six? How does a fractionating column separate crude oil into different parts? What happens when chlorine water is exposed to sunlight? How do you dissolve toenail? What is the reaction SO2 plus H2O H2SO2 not balanced? How does a 9-volt battery catch steel wool on fire? What is a formula for a chemical compound? Is it true that carbon forms only polar molecules? What is a substance called that gives off heat when it burns? Will a precipitate form if solutions of the soluble salts AgNO3 and KI are mixed? WHAT IS THE VALANCY OF POTASSIUM PERMANGANATE?

What is the Oxidation number for Mn3C - manganese carbide?