Lauren, a chemistry student, makes the following claim: My results showed that even more energy was lost during combustion during the food burning compared to burning pentanol. I think this is because the large flames and fast burning caused more energy to be lost to the surroundings. Also, I could see smoke during the combustion, showing that not all the fuel was burned. Does this match your results?

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.

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