A 255 gram sample of hydrated magnesium carbonate is heated to evaporate the water. The dehydrated sample of magnesium carbonate has a mass of 195 grams. Determine the formula of this hydrate.

What is the mass of each element in a 324.8 sample of co2

What happens when an atom of sulfur combines with two atoms of chlorine to produce sci2? a. each chlorine atom shares a pair of electrons with the sulfur atom. b. an electron is transferred from each chlorine atom to the sulfur atom. c. an electron is transferred from the sulfur atom to each chlorine atom. d. each chlorine atom shares all its valence electrons with the sulfur atom.

According to the diagram, what sources contribute to the phosphorus found in soil? according to the diagram, phosphorus found in soil contributes phosphorus to what other sources?