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The oxidation state of oxygen is not -2, it is 0 - because oxygen is an element.
Oxide, however, has oxidation state of -2. This is because the anion is O2- and the oxidation state of ions is equal to the charge held by the ion.
The exception for oxide is that the oxidation state is -1 in peroxides e.g. H2O2 (hydrogen peroxide)
Hydrogen usually has an oxidation number of +1 in compounds. However, in certain cases such as metal hydrides (e.g., NaH, LiH), hydrogen can have an oxidation number of -1 due to its electronegativity being lower than that of the metal atom to which it is bonded.
Hydrogen has only 1 valence electron. It can accept one more to get the electronic configuration of nearest noble gas. So, when hydrogen accepts one electron its oxidation number is -1.
Oxygen has 6 valence electrons. It needs to gain two more to complete octet. So oxygen has an oxidation number of -2 when it gains 2 electrons (as in oxide ion)
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What is the oxidation number of H2O2?
The oxidation number for H is +1, and the oxidation number for O is -1.
What are the oxidation numbers for hydrogen?
The oxidation number for hydrogen is typically +1 when it is in a compound. However, in metal hydrides, such as NaH, the oxidation number for hydrogen is -1.
What is the usual oxidation number of an oxygen and of hydrogen?
The usual oxidation number of oxygen is -2, while the usual oxidation number of hydrogen is +1.
What is the oxidation number of H in AsH3?
The oxidation number of hydrogen (H) in AsH3 is +1. Hydrogen typically has an oxidation number of +1 when bonded to nonmetals.
What is the oxidation number of hydrogen in iodic acid?
The oxidation number of hydrogen in iodic acid (HIO3) is +1.
What is the oxidation number of H2O2?
The oxidation number for H is +1, and the oxidation number for O is -1.
What are the oxidation numbers for hydrogen?
The oxidation number for hydrogen is typically +1 when it is in a compound. However, in metal hydrides, such as NaH, the oxidation number for hydrogen is -1.
What is the usual oxidation number of an oxygen and of hydrogen?
The usual oxidation number of oxygen is -2, while the usual oxidation number of hydrogen is +1.
What is the oxidation number of H in AsH3?
The oxidation number of hydrogen (H) in AsH3 is +1. Hydrogen typically has an oxidation number of +1 when bonded to nonmetals.
What is the oxidation number of hydrogen in iodic acid?
The oxidation number of hydrogen in iodic acid (HIO3) is +1.
What is the oxidation number of H2CO2?
The oxidation number of each hydrogen in H2CO2 is +1, while the oxidation number of each carbon in CO2 is +4. This is because hydrogen usually has an oxidation number of +1, and oxygen usually has an oxidation number of -2.
What is the oxidation number of hydrogen in ethane?
The oxidation number of hydrogen in ethane (C2H6) is +1. Hydrogen tends to have a +1 oxidation state when bonded to nonmetals like carbon.
What is the oxidation number of hydrogen?
The oxidation number of hydrogen is +1 when combined with nonmetals, and -1 when combined with metals.
What is the oxidation number of HClO?
Hydrogen's oxidation number is +1.Chlorin's oxidation number is +1.Oxygen's oxidation number is -2.
What is the oxidation number of hydrogen usually?
Hydrogen gas (H2) Oxidation number is 0. Hydrogen (H+) is +1.
In the compound H2 S hydrogen has an oxidation number of 1 plus and sulfur has an oxidation number of?
In the compound H2S, hydrogen has an oxidation number of +1, and sulfur has an oxidation number of -2.
What is the oxidation number of HCL?
Hydrogen chloride (HCl) is a covalent compound, where hydrogen typically has an oxidation number of +1 and chlorine has an oxidation number of -1.
