Physical And Chemical Change

Question 1

Examples of Physical Properties:

Answer 1

• Particle size
• Phase
• Electrical conductivity
• Malleability
• Lustre
• Melting point
• Boiling point

Question 2

Examples of Chemical Properties

Answer 2

• Toxicity
• Reactivity
• Flammability
• Type of chemical bonds that will form

Question 3

Chemical Reaction categories

Answer 3

• Synthesis
• Decomposition
• Combustion
• Ion-exchange
• Acid-Base

Question 4

Combustion reactions

Answer 4

• Energy released is heat & light energy

Question 5

Decomposition Reactions

Answer 5

• Decomposition of potassium chlorate
• Decomposition of hydrogen peroxide
• Decomposition of water

Question 6

Test for oxygen gas

Answer 6

A glowing wood splint will reignite in the presence of oxygen