Rusting

Is glass breaking a chemical or physical change?

• chemical
• physical

Is a a rusting bicycle a chemical or physical change?

• chemcial
• physical

Is melting ice a chemical or physical change?

• chemical
• physical

Boiling Water

• Physical Change

• Chemical Change

Match the following:

• Examples of Physical Changes

• Physical Changes

• changes that cause a substance to change into a new substance

• Combustion, Rusting, Burning, Corroding

• Changes that change the appearances of the substance, not is identify.

• Freezing, Grinding, Chopping, Tearing, Evaporating

• Examples of Chemical Changes

• Chemical Changes

where are the products in an equation?

• The products are on the right side of the equation

• The products are on the left side of the equation

Combining substances to form new substances is called

• Chemical reaction

• Physical reaction

• Exothermic reaction

• Endothermic reaction

Galvanizing is a process of:

• Applying a Zinc coating to bare steel

• Washing the body with the phosphate coating

• dipping a body in E-COAT

• Chemically etching primer to steel

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

• Iron object coated with tin

• Underground iron pipes connected to magnesium bars

• Iron railings coated with paint

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