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In a combustion reaction, the oxidation number of hydrogen in water is +1 and the oxidation number of oxygen is -2. The oxidation number of an element in a compound represents the charge it would have if all shared electrons were assigned to the more electronegative element.

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In a combustion reaction the always changes oxidation number making this aN reaction?

oxygen, redox


The change in the oxidation number of Mn is?

The change in oxidation number of Mn in a reaction is determined by the difference in oxidation numbers before and after the reaction. For example, in the reaction MnO2 → Mn2O3, the oxidation number changes from +4 to +3, resulting in a decrease of 1.


What is the oxidation number of sulphur in the equation of combustion of H2S?

The oxidation number of sulphur in H2S is 2.


Is the reaction agno3 plus fecl3 equals agcl plus fe no3 3 redox?

No, it is not a redox reaction. None of the oxidation numbers changes during the reaction. You have to determine the oxidation number for each element and see if it changes from reactant side to product side. If the oxidation number doesn't change, it is not a redox reaction.


Determine the oxidation numbers of each element in both the reactants and products of this oxidation-reduction reaction of aluminum?

In the reaction of aluminum with oxygen to form aluminum oxide (Al + O2 -> Al2O3), the oxidation number of aluminum changes from 0 to +3, while the oxidation number of oxygen changes from 0 to -2. This indicates that aluminum is undergoing oxidation, while oxygen is undergoing reduction in the reaction.


Why numbers in balanced equation are consistent with changes in oxidation numbers?

This is because when we balance a redox reaction, the stoichiometric coefficients are such that the total positive Oxidation number in the reaction and the Total negative Oxidation number corresponds to the net charge of the reaction.


What happens during a reduction/oxidation reaction?

An oxidation-reduction (redox) reaction is a type of chemical reaction that involves a transfer of electrons between two species. An oxidation-reduction reaction is any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron


Is N2O4 ---- 2NO2 a redox reaction?

Yes, the reaction N2O4 -> 2NO2 is a redox reaction because nitrogen changes its oxidation state from +4 to +2, while oxygen changes its oxidation state from -2 to 0. This indicates a transfer of electrons between the reactants.


What is the change in the oxidation number of Cr?

The change in oxidation number of Cr depends on the specific reaction or compound involved. For example, in the reaction from Cr(III) to Cr(VI), the oxidation number of Cr changes from +3 to +6, indicating an increase in oxidation state.


How can one determine redox reactions?

Redox reactions can be determined by looking for changes in oxidation numbers of elements involved in the reaction. Oxidation involves an increase in oxidation number, while reduction involves a decrease. If there is a change in oxidation numbers, it indicates a redox reaction.


Which element increases its oxidation number in this reaction 3koh h3po4 k3po4 3h2o?

Phosphorus increases its oxidation number in this reaction. In H3PO4, phosphorus has an oxidation number of +5, and in K3PO4, it has an oxidation number of +5 as well. This means that phosphorus's oxidation state remains the same throughout the reaction.


Which element decreases its oxidation number in the following reaction?

An element that decreases its oxidation number in a chemical reaction is undergoing reduction. In the given reaction, the element that is reduced is the one that gains electrons and decreases its oxidation number.