Lab Report On The Candle Lab

In the candle lab we saw a lot of things that happened. Before the candle was set on fire we made some observations about the candle. The candle was white and the wick was also white. At the time the candle didn’t have a smell. As we touched the candle before it was lit it felt smooth and the wick felt like a rope- like item. The wick hole was small. As we were observing the candle before it was lit the state of the candle was soild state. When the candle was lit we noticed that the flame was moving quite a bit. After burning for a period of time we started to see that there was a puddle of wax because the candle was melting . The wick’s color has changed now to black. The candle at the time smelled like charred wood and the flame wasn’t that

While wax is burning it is the fuel source of the candle because in order for a candle to burn it needs to have a souce of heat. In order to have a heat soure we need the wick to be on fire. In the end the candle vaporizes a small amount of wax. In the crayon lab we saw that the flame was unstable at first. Then the flame was getting bigger this is because a phase change was occurring it was going from gas to liquid. The crayon looked like it was boiling when we looked down and we soon learned that it was boiling because the wax was evaporating due to the crayon being on fire. We saw that when you cut the paper off the crayon while it was still burning that nothing happened because the crayon still had a fuel source. The flame was around the fire. Once we the crayon was blown out the smell was really bad. While the crayon was on fire we saw that the wax was melting down and that the paper was turning black due to the fire. The chemical equation for a candle is C25H52 + 38 O2 -------------------> 25CO2 + 26

25 carbon atoms chemically bonded with 52 hydrogen atoms, 2 oxygen bonded together these two chemically bonded molecules create two things with being bonded they create pariffin wax and oxgen. They are very imporant because wax is the fuel source of the fire and a fire needs oxygen to stay lit. As for the second part which is the products meaning what is made out is carbon dioxide and water vapor. Carbon dixoide is made because it bonds with two oxgen atoms and water vapor is created when two hydrogen and one oxgen molecule bonds. The products that are made are very importanat because it helps keep the fire going and it helps vaporize the wax when it is melting. The energy transforms from chemical energy to heat and light energy. Because when the candle burns a chemical reaction occurs, and produces heat and light. The reason why there is heat is because of the fire it also produces light because the fire is stable and has a heat source. Experiment seven was about a candle and smoke. The lighter never touched the wick of the candle it always caught fire when put near the