DCA 1.2 review

Which example best describes a physical change?

• iron rusting
• charcoal burning
• an ice cube melting
• a marshmallow burning

Glass bottle that is shattered

• Chemical Change
• Physical Change

Baking soda and vinegar combine to make carbon dioxide

• Chemical Change
• Physical Change

Which of the following are examples of a Chemical Change?

• Iron Rusting

• Gas Burning

• Breaking a glass

• Boiling water

• Burning Wood

Hydrochloric acid reacts with potassium hydroxide to produce a salt, water,and heat.

• Chemical Change
• Physical Change

Sugar dissolves in water

• Chemical Change
• Physical Change

Copper tarnishing is an example of a ___________ change.

• physical

• chemical

Which process is a sign of a chemical change?

• A rotting potato gives off a bad smell

• A melting block of ice leaves a large puddle

• A cloud quickly changes shape when blown by wind

• A plaster statue breaks when it falls onto the floor

Is spoiling food a physical or chemical change?

• phyiscal
• chemical

Is frying an egg a physical or chemical change?

• chemical
• physical