Which compound is a carbohydrate. Nucleotide or protien or starch or amino acid

C3h8o3 - glycerol major species present when dissolved in water

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?

To find the enthalpy of a reaction in the lab, you measured the of the reactants and the change during the reaction.