Question

directions:
identify another chemical reaction that is important to your daily life. (hint: this site is a good resource.)

Explanation:

One important chemical reaction in daily life is photosynthesis (though it's more of a biochemical reaction, but still involves chemical changes). However, a more direct one for daily life is the combustion of fuels like methane (\(CH_4 + 2O_2
ightarrow CO_2 + 2H_2O\)) for cooking or heating. Another common one is the rusting of iron (\(4Fe + 3O_2 + 6H_2O
ightarrow 4Fe(OH)_3\)), which affects metal objects. Let's take the combustion of gasoline in cars: the reaction is complex, but generally involves hydrocarbons reacting with oxygen to produce carbon dioxide, water, and energy. This reaction powers vehicles, enabling transportation which is crucial for daily commuting, travel, and goods delivery. The chemical reaction releases energy that is converted into mechanical energy to move the car.

Answer:

An important chemical reaction in daily life is the combustion of gasoline in vehicles. The general reaction for a hydrocarbon (like octane, \(C_8H_{18}\)) in gasoline is \(2C_8H_{18}+25O_2
ightarrow16CO_2 + 18H_2O\) (along with energy release). This reaction provides the energy needed to power cars, facilitating transportation for daily activities such as commuting to work, running errands, and traveling. Another example is the reaction of baking soda (sodium bicarbonate, \(NaHCO_3\)) with vinegar (acetic acid, \(CH_3COOH\)): \(NaHCO_3+CH_3COOH
ightarrow CH_3COONa + H_2O+CO_2\uparrow\), which is used in baking to make dough rise or in cleaning due to the gas production and mild reaction.