MISSED THIS? Watch KCV: Atomic Theory; Read Section 2.3. You can click on the Review link to access the section in your eText. An automobile gasoline tank holds 35.0 kg of gasoline. When all of the gasoline burns, 158.0 kg of oxygen is consumed, and carbon dioxide and water are produced. Express your answer to one decimal place with the appropriate units.

Did you know that atomic theory has evolved immensely since its inception? The Greeks, especially Democritus, first proposed that matter was made up of indivisible particles called atoms. Fast forward to the 19th century, John Dalton revamped this idea, introducing a systematic atomic theory that laid the groundwork for modern chemistry. This historical context shows how our understanding of matter has deepened over centuries. In real-world applications, the combustion of gasoline is a fantastic example of the conservation of mass. When gasoline (hydrocarbons) burns, it reacts with oxygen, producing carbon dioxide and water. The masses of reactants and products are balanced, which aligns perfectly with the principles of stoichiometry. So next time you fill up your tank, remember the chemical reactions happening!