Which substance is made of molecules?

Which of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o

How can a give a full method for the experiment of separating sand from water by filtration? 1-materials 2-steps 3-conclusion also for water and salt separated by the evaporation or distillation process

Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa