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Redox

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卡片总数: 13 张•内容版本: v4•公开卡包•更新时间: 8/1/2026

卡片预览 (13 张)

#1
正面 (问题)

What is oxidation?

背面 (解答)

• loss of electrons - oxidation state increases

#2
正面 (问题)

What is reduction?

背面 (解答)

• gain of electron - oxidation state decreases

#3
正面 (问题)

What is an oxidising agent?

背面 (解答)

• gains electrons from other species - oxidising agent itself is reduced

#4
正面 (问题)

What is an reducing agent?

背面 (解答)

• loses electrons to give it to other species - is itself oxidised

#5
正面 (问题)

What is the oxidation state of hydrogen?

背面 (解答)

• always +1 - except in metal hydrides, where is -1 e.g. NaH

#6
正面 (问题)

What is the oxidation state of group 1 metals?

背面 (解答)

Always +1

#7
正面 (问题)

What is the oxidation state of group 2 metals?

背面 (解答)

Always +2

#8
正面 (问题)

What is the oxidation state of Aluminium?

背面 (解答)

Always +3

#9
正面 (问题)

What is the oxidation state of oxygen?

背面 (解答)

-2, EXCEPT when with peroxide compound e.g. H2O2 or bonded to F then it will be -1

#10
正面 (问题)

What is the oxidation state of Chlorine?

背面 (解答)

-1, EXCEPT in compounds containing F or O where it can have a positive value

#11
正面 (问题)

What is the oxidation state of uncombined elements?

背面 (解答)

ALWAYS 0

#12
正面 (问题)

How would you balance out a REDOX half equation?

背面 (解答)

• Balance central ion/atom (not O or H) • Balance O (if present) with water molecules • Balance the H by adding H+ ions • Balance charges by adding adding electron on the more positive side

#13
正面 (问题)

What is a disproportionation reaction?

背面 (解答)

Same element undergoes oxidation and reduction at the same time