C6 - Chemistry Out There

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

Card preview (24)

Front (Question)

C6 - Chemistry Out There What is reduction?

Back (Answer)

Gain of electrons

Front (Question)

C6 - Chemistry Out There What does an oxidising agent do?

Back (Answer)

Accept electrons and gets reduced

Front (Question)

C6 - Chemistry Out There What does a reducing agent do?

Back (Answer)

Donate electrons and get oxidised

Front (Question)

C6 - Chemistry Out There What does displacement reactions involve?

Back (Answer)

One metal kicking another one out of a compound

Front (Question)

C6 - Chemistry Out There What is the rule for displacement reactions?

Back (Answer)

A more reactive metal will displace a less reactive metal from its compound

Front (Question)

C6 - Chemistry Out There Why do some iron and steels rust?

Back (Answer)

When they come into contact with air and water

Front (Question)

C6 - Chemistry Out There When does rusting of iron only occur?

Back (Answer)

When iron is in contact with both water and oxygen

Front (Question)

C6 - Chemistry Out There What is rust a form of?

Back (Answer)

Hydrated iron (III) oxide

Front (Question)

C6 - Chemistry Out There What is the equation for rusting?

Back (Answer)

Iron + oxygen + water -> hydrated iron (III) oxide

#10

Front (Question)

C6 - Chemistry Out There What type of reaction is rusting of iron?

Back (Answer)

Redox

#11

Front (Question)

C6 - Chemistry Out There What happens to iron when it reacts with oxygen?

Back (Answer)

Loses electrons - oxidised. Each Fe atom loses 3 electrons to become Fe3+.

#12

Front (Question)

C6 - Chemistry Out There What happens to oxygen when it reacts with iron?

Back (Answer)

Reduced. Each O atom gains 2 electrons to become O2-.

#13

Front (Question)

C6 - Chemistry Out There What are the 4 ways to prevent rusting?

Back (Answer)

Make alloys. Barrier. Tin coating/plating. More reactive metals (galvanising)

#14

Front (Question)

C6 - Chemistry Out There What are steels alloys of?

Back (Answer)

Iron with carbon and small quantities of other metals

#15

Front (Question)

C6 - Chemistry Out There What is stainless steel?

Back (Answer)

One of most common steels - rustproof alloy of iron, carbon and chromium.

#16

Front (Question)

C6 - Chemistry Out There How does a barrier prevent rusting?

Back (Answer)

Keeps out water, oxygen or both.

#17

Front (Question)

C6 - Chemistry Out There How is painting ideal to prevent rusting?

Back (Answer)

Ideal for large and small structures. Nice and colourful.

#18

Front (Question)

C6 - Chemistry Out There How is oiling or greasing used to prevent rusting?

Back (Answer)

Has to be used when moving parts are involved e.g. Bike chains

#19

Front (Question)

C6 - Chemistry Out There What is tin plating?

Back (Answer)

A coat of tin is applied to the object e.g. Food cans.

#20

Front (Question)

C6 - Chemistry Out There How does tin plating prevent rusting?

Back (Answer)

Acts as a barrier, stopping water and oxygen from reaching iron surface.

#21

Front (Question)

C6 - Chemistry Out There Tin plating only as long as…

Back (Answer)

Tin remains intact. If scratched, iron will lose electrons and rust even faster.

#22

Front (Question)

C6 - Chemistry Out There Why is it not always a good idea to buy reduced bashed tins?

Back (Answer)

They could be starting to rust.

#23

Front (Question)

C6 - Chemistry Out There How does the sacrificial method work?

Back (Answer)

Place a more reactive metal with the iron. Water and oxygen react with the sacrificial metal instead of iron.

#24

Front (Question)

C6 - Chemistry Out There What is galvanising?

Back (Answer)

A coat of zinc put on object. Zinc is sacrificial protection - more reactive - loses electrons in preference to iron.