Rusting

Question 1

What is rusting? (Type of chemical reaction, common name…)

Answer 1

Rust is a common name for iron oxide. Rusting is when iron reacts with oxygen in presence of water to form rusts, which we can see. Rust is an oxidation reaction as the metal reacts with oxygen.

Question 2

Name the only element that rusts.

Answer 2

Iron is the ONLY metal that rusts.

Question 3

Describe the rate of reaction.

Answer 3

How fast or slow the chemical reaction is.

Question 4

Chemical name for rust and describe its appearance.

Answer 4

The chemical name for rust is iron oxide.
Appearance:
Rust (iron oxide) is the orangey-brown, dull, crumbled compound made when iron rusts (corrodes).

Question 5

What is the word and balanced symbol equation for the rusting reaction?

Answer 5

iron + water + oxygen -> iron oxide/rust

4Fe + 3O2 + 6H2O —> 4Fe(OH)3

Question 6

What type of chemical reaction is rust?

Answer 6

Rust is an oxidation reaction.

Question 7

State the conditions needed for rusting.

Answer 7

Iron has to react with oxygen along with the presence of water to form rust.

Question 8

Describe how to speed up rusting.

Answer 8

Direct sunlight helps speed up the rusting process.

Liquids such as vinegar speeds up rusting as it contains a dilute form of acetic acid.

Question 9

Describe how to slow down rusting.

Answer 9

Coat the metal with oil - reduces the chances of developing rust in iron
Paint the metal - reduce rust
Keep moisture at Bay - avoid contact with water or moisture at the minimum,

Question 10

What is the conservation of mass?

Answer 10

Conservation of mass means that mass is conserved (stays the same) in a reaction.
This means that if we measured the total mass of the reactants and the total mass of the products, they would be the same.