You are making a VERY large cookie. To help the cookie rise, you add baking soda. The baking soda will decompose to
produce carbon dioxide according to the following reaction:
2NaHCO3
Na2CO3 +H2O + CO2
You use 4.80 grams of baking soda (NaHCO3) in the recipe.
What volume of carbon dioxide (in Liters) will this amount of
baking soda produce? The temperature of the oven is 191°C
and you are at standard Wressure.

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.