RUSTING

HOW CAN WE PREVENT RUSTING?

• EXPOSE TO AIR

• EXPOSE TO WATER

• COATING AND PAINTING

• ALL ABOVE

HOW DOES RUSTING OCCURS?IRON OXIDE IS FORMED WHEN IRON AND OXYGEN REACT IN THE PRESENCE OF WATER IN THE AIR.

• YES

• NO

HOW DOES CAUSE RUST?

• BREAKING THE IRON ATOM

• BREAKING UP THE OXYGEN MOLECULE

• PROVIDE OXYGEN

• REACT WITH IRON(II) HYDROXIDE

DOES ALUMINIUM GET RUST?

• FALSE

• TRUE

THE CONDITION FOR RUSTING TO OCCUR IS...

• OXYGEN

• IRON

• OXYGEN AND IRON

• PAINT COATING

DOES SALT SPEED UP RUSTING?

• TRUE

• FALSE

Rusting and oxidation are examples of

• corrosion

• toxicity

• decomposition

• physical changes

What element rusts?

• carbon
• iron
• manganese
• potassium

Which type of metal doesn't rust at all?

• steel
• iron
• copper

Rusting is an example of

• oxidation
• reduction