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B2 Redox + Periodicity

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

Oxidation number of element

Back (Answer)

0

#2
Front (Question)

Oxidation number of group 1

Back (Answer)

1+

#3
Front (Question)

Oxidation number of group 2

Back (Answer)

2+

#4
Front (Question)

Oxidation number of flourine

Back (Answer)

1-

#5
Front (Question)

Oxidation number of oxygen in H2O2

Back (Answer)

1-

#6
Front (Question)

Oxidation number of hydrogen in H2O2

Back (Answer)

1+

#7
Front (Question)

What substance gets the negative oxidation number in a compound

Back (Answer)

The most electronegative

#8
Front (Question)

Sum of oxidation numbers in a neutral compound

Back (Answer)

0

#9
Front (Question)

Sum of oxidation numbers in an ion

Back (Answer)

Charge of ion

#10
Front (Question)

What happens to oxidation number when a substance is reduced

Back (Answer)

Decreases

#11
Front (Question)

What happens to oxidation number when a substance is oxidised

Back (Answer)

Increases

#12
Front (Question)

When writing systamatic names, when does the Roman numeral oxidation number come

Back (Answer)

• In brackets after the element • e.g Titanium (IV) Oxide

#13
Front (Question)

In metal and acid reactions, what is reduced and what is oxidised

Back (Answer)

• Metal oxidised • Hydrogen reduced

#14
Front (Question)

Meaning of oxidation

Back (Answer)

• Loss of electrons • Increase in oxidation number

#15
Front (Question)

Meaning of reduction

Back (Answer)

• Gain of electrons • Decrease in oxidation number

#16
Front (Question)

Define Disproportionation

Back (Answer)

Reduction and oxidation of the same element in the same reaction

#17
Front (Question)

Define Oxidising Agent

Back (Answer)

• Removes electrons from another species buy accepting them • Increasing species oxidation number

#18
Front (Question)

Define Reducing Agent

Back (Answer)

• Donates electrons to another species by loosing them • Decreasing species oxidation number

#19
Front (Question)

How to write elemental half-equations

Back (Answer)

• Calculate overall charge on each side • Add electrons to more positive side • Ensure fully balanced

#20
Front (Question)

How is the periodic table arranged

Back (Answer)

Increasing atomic number

#21
Front (Question)

How to write half-equations for acidic conditions

Back (Answer)

• Balance the element changing oxidation state • For every oxygen, add an H2O to the other side • For every hydrogen, add an H+ to the other side • Use electrons to ensure both sides have the same charge

#22
Front (Question)

What do elements in periods in the periodic table have

Back (Answer)

Repeating trends in physical and chemical properties

#23
Front (Question)

What do elements in groups of the periodic table have

Back (Answer)

Similar chemical properties

#24
Front (Question)

Define Periodicity

Back (Answer)

The repeating trends in physical and chemical properties across different periods