Which of the following subject areas contains questions that can be answered by science? alchemy ethics forensics politics

The molecular formula for caffeine is cshion402. which of the following elements is not found in caffeine?

Used the balanced equation 2h2+ o2 - -> 2h2o. if you have 7.2 grams of o2 , how many grams of h2o can you produce ?

Between 2014 and 2016, more than 25,000 children in flint, michigan, drank water that was contaminated with lead from lead pipes. during this time, the city claimed the water was safe to drink. which of these actions could the city have taken to ensure that the drinking water was free from lead?