science

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

  1. 👍 0
  2. 👎 0
  3. 👁 35
asked by elisha
  1. 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.

    1. 👍 0
    2. 👎 0
    posted by drbob222
  2. 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

    1. 👍 0
    2. 👎 0
    posted by elisha
  3. do you no anything else
    plz help
    xx

    1. 👍 0
    2. 👎 0
    posted by elisha

Respond to this Question

First Name

Your Response

Similar Questions

  1. 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

    asked by molly on October 22, 2008
  2. science

    What happens when a candle is alight is the subject. Explained both changes using the Big Idea of Energy? Can anyone help please or explain? I don't understand the question. Can you repost and clarify please? What happens when a

    asked by liverpool on October 20, 2006
  3. 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

    asked by liverpool on October 21, 2006
  4. 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

    asked by Sara on April 7, 2010
  5. science

    what happens when a candle is alight?

    asked by ella on January 31, 2008
  6. Science

    what happens when a candle is alight?

    asked by Danni on December 5, 2007
  7. scince

    What happens when a candle is alight?

    asked by amy on September 17, 2009
  8. science

    Im doing a poster for school and its about when a candle is alight and I don't under stand it could you please help

    asked by skyler on February 12, 2015
  9. sicence

    with your knowlage draw a diagram of the chemical changes of when a candle is alight

    asked by holly on April 21, 2008
  10. science

    Hi, this question was posted by liverpool I see but has not been responded to after 2nd entry each time. What happens when a candle is alight. Having to show chemical/physical change. The question is 'Explained both changes using

    asked by melody on October 22, 2006

More Similar Questions