Lab Observations Of A Candle Write Up

Analysis:
1.The cd getting smaller and the wax melting atomic number 18 physical changes. Wick turning black, contributedle having fall drop shaped fire, and the fire having different colored layers are all chemical changes.
2.The candle wax burns as a evaporation because when the smoke its contrive into the another(prenominal) flash, the flame gets bigger which means its feeding attain of the smoke. That means wax has to burn as a vapor because its the only thing present.
3.The other requirement is atomic number 8 because when the flask was put over the flame, the flame went unwrap when the flask became a senselessness before the water reached the flame.
4.The products of a combustion candle are carbon dioxide and water.
5.wax(vapor) + oxygen?carbon dioxide + water
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From this lab, I learned that wax burns in a vapor state. Fire requires fuel and oxygen in grade to burn. The products of a combustion reaction are carbon dioxide and water. I also found out that it takes skill to light a match and that its difficult to keep gas where you motivation it to be without a sealed container. There are many an(prenominal) sources of error.



The first source of error was that if you blow on the candle too hard, the wax vapor blows away and the flame doesnt jump. The next source of error is that if you dont put in the limewater and stopper quickly enough, the carbon dioxide escapes and the water wint turn chalky. A real life practical application for this lab is that if youre cooking and the pan catches on fire, you can just put a cover on the pan. The vacuum that you create will cause the fire to burn itself out when it runs out of oxygen. This lab makes me wonder whether using a bigger flask for the water would cause the water to reach the flame before the oxygen burned out. I wonder if we could percolate the carbon dioxide in a beaker, or if it would escape too fast.If you want to get a full essay, order it on our website: Orderessay



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