Chemistry Finals Review Part I

Which of the following is a physical change?

• Burning of coal
• Digesting food
• Souring of milk
• Dissolving salt

Which of the following is a chemical change?

• Burning paper
• Cutting paper
• Folding paper
• Trimming paper

Which of the following describes a chemical property of an element?

• Copper is malleable.
• Nonmetals are not shiny.
• Sodium reacts violently with water.
• Silicon is a poor conductor of electricity.

Which of the following is NOT a physical property?

• Flammability
• Malleability
• Ductility
• Melting point

All of the following are intensive properties EXCEPT:

• Hardness
• Volume
• Density
• Color

Which of the following is an extensive property?

• density
• mass
• freezing point
• boiling point

Which of the following is a physical property?

• Appears reddish at room temperature
• Reacts with acid to form salt
• Form covalent bond with oxygen
• Burn in air to form carbon dioxide and water

Boiling point is the temperature at which a liquid turns into gas. For water, the boiling point is 100˚C. Which of the following is TRUE about boiling point as a property of matter?

• Physical and extensive
• Physical and intensive
• Chemical and intensive
• Chemical and extensive

All of the following are elements EXCEPT:

• C
• Co
• CO
• Cl₂

Which of the following is a compound?

• Gold (Au)
• Water (H₂O)
• Hydrogen (H₂)
• Oxygen (O₂)