science

posted by .

what happens when a candle is alight, basing it on energy.
what are the physical changes and chemical changes?
please heip me asap
thanx

  • science -

    One physical change is that the candle melts. One chemical change is that some of the candle (wax--which is a hydrocarbon) combines with oxygen to produce CO2 and H2O. This is an exothermic reaction and produces heat and light in addition to the other products. Read in your text or notes to help understand what is going on.

  • science -

    do you no anything else
    plz help
    xx

  • science -

    thanx is there anymore chemical changes
    i have 2 do a poster explaining what happens when a candle is alight
    thanx 4 your help is there anythjing else you know
    xx

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. science

    What happens when a candle is alight is the subject. Explained both changes using the Big Idea of Energy?
  2. science

    What happens when a candle is alight (on one side we had to show physical change and on other side the chemical change). The question sheet says 'Explained both changes using the Big Idea of Energy.' The physical changes are what you …
  3. sicence

    with your knowlage draw a diagram of the chemical changes of when a candle is alight
  4. chemistry help please!

    For my year 7 homework i have had to write a poster about pyhsical and chemical changes when a candle is alight. We have had to use certain vocabulary and one is evaporation. I know what this term means but don't know what evaporates …
  5. SCIENCE

    EXPLAIN BOTH CHEMICAL AND PHYSICAL CHANGES WHEN CANDLE BURNS ALSO CHAMICAL SYMBOLS
  6. science

    okay i have a question which is on a key assesed piece explain the physical and chemical changes when a candle burns using the big idea of energy?
  7. Changes in Matter

    Which of the following kitchen activities are physical changes, and which are chemical changes?
  8. Changes in Matter

    Which of the following everyday activities are physical changes, and which are chemical changes?
  9. Changes in Matter

    Which of the following geological changes are physical changes and which are chemical changes?
  10. To: Bobpursely

    You helped me with my observations yesterday, but I need help with my questions as well. I tried to answer as many as I could by myself, but I'm having difficulties understanding some. Pointing me towards the right direction would …

More Similar Questions