Environmental chemistry and patterns of reactivity

What element rusts?

• carbon
• iron
• manganese
• potassium

What environmental element assists rusting?

• nitrogen
• carbon
• oxygen
• hydrogen

A rusting bicycle

• physical change
• chemical change

What conditions are required for rusting? 

• dry cold conditions
• hot damp conditions
• dry hot conditions

What two things cause Iron to Rust ?

• Water and Air 
• Air and HCl
• Carbon Monoxide and Air 
• Water and Carbon Dioxide

What was the chemical name given to Rust ?

• Carbon 
• Iron Oxide 

What is an ore?

• A combination of carbon and iron
• A combination of metal and other elements
• A combination of elements and oxide
• A combination of metal and carbon

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

• Zinc plating
• Nickel plating

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

Which of the following is / are examples of sacrificial protection against rusting?

(1) Iron object coated with tin

(2) Underground iron pipes connected to magnesium bars

(3) Iron railings coated with paint

• (1) only

• (2) only

• (1) and (3) only

• (2) and (3) only