Answered

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37.In the compound MgO, what is the oxidation number of oxygen?Select one:a. +4b. +2c. +1d. -2

Sagot :

When we have to determine the oxidation number of compounds, we need to look at their specific and most common charges in their non neutral form, and Oxygen is an element that will usually present a -2 oxidation number and charge, the same way Hydrogen will almost always present a charge of +1, these fixed values for some elements is helpful for us to determine the oxidation number of other elements. For oxygen is -2, therefore letter D

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