Question

A representative formula for a wax is C, HWrite a balanced equation for the combustion of the wax of the candle. CHO+O, Methane is burned as a source of energy. The formula for methane is CH, Again, write a balanced equation for the combustion of methane. CH, +0,- Most combustion gives off energy and the reaction is called an exothermic reaction. On which side of the equation will this energy be shown? To illustrate this redo the equation describing the combustion of methane writing the word energy on the appropriate side of the equation. CH, + 0,- Exercise 9.2 One of the initial fire extinguishers contained acetic acid (CH,COOH), and sodium bicarbonate (baking soda; NaHCO). They reacted forming carbon dioxide (CO), sodium acetate (NaOOCCH) and water (H,O). The carbon dioxide gas is denser than air and blankets the fire. One essential for a fire to burn is that there be fuel and oxygen. Thus, taking away either the fuel (the material that is burning such as wood, paper, meth- ane) or oxygen will prevent the fire from continuing to burn Add to a glass several spoonfuls of baking soda and then mix in several spoonfuls of vinegar (most vinegar contains about 1/3 acetic acid). Light a candle and act like you are pouring the contents (but do not pour the solid or liquid out) of the glass towards the lighten end of the candle. 3. What happens? 4. Write a balanced equation for the reaction of acetic acid and sodium bicarbonate.

Answer 1

1. Representative formula f& wax is Cythso. Then balanced equation for candle combustion is Czy 430 + 220, 1400, + 15H20 2. 3. Balanced equation for combustion of methane is CH+20, cof+ 2440 As the combustion of methane is thermic after completion completion of reaction , energy is released, valong with products. CHy + 202 → co ↑ +240 +energy. when light candle baking soda and vinegar solution, the candle is howed it off due to emission of coal by following reaction Baking soda is also sodium bicarbonate and vacetic acid mostly 4. be hear bo vinagar the called contains CH3COOH +NaHCO3 → CH,CO2 Na + H2O +co, Sodium acetate