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8A.2 Assigning oxidation numbers

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卡片总数: 3内容版本: v4公开卡包更新时间: 8/1/2026

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#1
正面 (问题)

what are the rules that help us caculate the oxidasation number

背面 (解答)

• the oxidation number of an uncombined species is zero • the sum of the oxidation numbers of all elements in a neutral compound is zero • the sum of the oxidation number of all the elements in an ion is equal to the charge of the ion • the more electronegative element is given a negative oxidation number • F oxidation number is always 1- • the oxidation number of hydrogen is 1+ unless it is combined with a less electronegative element then it would be 1- • the oxidation number of oxygen is -2 unless in a peroxide which it’ll be -1, and when it is combined with F it would be 1+

#2
正面 (问题)

what is a peroxide

背面 (解答)

any of a class of chemical compounds in which two oxygen atoms are linked together

#3
正面 (问题)

what is the oxidation number

背面 (解答)

a charge an ion has, or a charge it would have if the pieces were fully ionic