Search the courses, subjects, tracks, games and features, or jump straight to a page.
3 cards from this section. Quick, good the night before a test.
What happens to the wax of a candle when it melts?
Think about the state change.
Name one product formed when a candle burns.
Remember the gas released?
What type of change occurs when wax melts?
Consider the definition of physical changes.
True or False: Burning a candle is solely a physical change.
Think about the reaction products when a candle burns.
Explain how you would set up an experiment to demonstrate the physical and chemical changes occurring in a candle when burnt. What observations would you make?
Think about different tools you may use to measure changes.
How would you differentiate the wax before and after burning in terms of its chemical composition?
Focus on molecular composition before and after the reaction.
5 more questions in this section. Enroll free to practise them all.
Enroll free