A 51.7 gram sample of iron is heated in the presence of excess sulfur. A metal sulfide is formed with a mass of 95.99 g. Determine the empirical formula of the metal sulfide. Empirical formula =

__ _ _ _ _ is the process of removing earth materials from their original sites through weathering and transport and depositing the in another location. a. erosion b. sedimentation c. lithification d. dissolution

Lewis structure and molecular geometry for nh2cl

Drive down any three characteristic of modern periodic table