If 15.60g of a hydrated compound is heated in an oven for several hours, its mass drops to 8.63g. assuming that the reduction in mass is due to the loss of water what is the percentage of water in the original hydrate?

If the particles in a sample of matter have an orderly arrangement and move only in place, the sample is a

Which statement correctly describes potassium iodide, ki? there is a one-to-one ratio of potassium ions to iodide ions. potassium gains electrons and iodine loses electrons during the reaction. the lattice is held together by potassium anions and iodide cations.

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.