Physical changes, Chemical properties and chemical changes

what is the definition of chemical change?

• any change that results in the formation of new chemical substances. 
• changing clothes
• matter cannot be created or destroyed, only change form
• changes affecting the appearence of a chemical substance, but not its chemical composition.

what is burning?

• physical change
• physical property
• chemical change
• chemical property

which one is a chemical property?

• density
• combustibility
• solubility
• all of the above

which one is NOT a physical change?

• evaporation

• boiling

• melting

• burning

which one is NOT a chemical change?

• rusting
• rotting
• boiling
• corroiding

what is a phase change (change in state)?

• physical property
• chemical property
• chemical change
• physical change

what is solubility?

• chemical property
• physical property
• george
• chemical change

One cup of water is left outside for two days when it was checked there was only half a cup left. What happened?

• evaporation; chemical change
• condensation; physical change 
• evaporation; physical change
• condensation; chemical change

True or false: melting is a chemical change

• true

• false

TRUE OR FALSE: You can look at matter and observe the chemical properties.

• TRUE
• FALSE