Coefficients in a chemical equation express between molecules or compounds is called

In a process called photosynthesis, plants use carbon dioxide and water, along ... 24 molecules of H2O. Which is the correctly balanced equation for the reaction of rust, Fe2O3, and hydrochloric acid, HCl? Fe2O3 + 6 HCl → 2 FeCl3 + 3 H2O. Coefficients in a chemical equation express between molecules or compounds.

Explanation:

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error