A student is given the molecular formula C14H10O6, calculate the mass of hydrogen in a 235g sample. Show each step of the calculations

Ionic compounds are made of ions, and yet the overall charge of an ionic compound is neutral. why?

List four observations that indicate that a chemical reaction may be taking place

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange