Corrosion

What is corrosion?

• The release of oxygen
• Breakdown of a metal

Iron rust in the presence of:

• Vacuum
• Moisture
• Oxygen
• Moisture and Oxygen

To protect iron against corrosion, the most durable metal plating on it, is:

• Zinc plating
• Nickel plating

Is this an example of corrosion?

• Yes
• No

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the chemical nature of rust?

• iron (II) oxide

• hydrated iron (II) oxide

• iron (III) oxide

• hydrated iron(III) oxide

What is the chemical nature of rust?

• iron (II) oxide

• hydrated iron (II) oxide

• iron (III) oxide

• hydrated iron(III) oxide

What conditions are required for rusting?

• water only

• oxygen only

• water and oxygen

Tags

NGSS.MS-ESS2-4

Which diagram shows the most favourable conditions for rust to appear on the nail?

• A

• B

• C

• D

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-2