What is the percentage of insoluble sample in the unknown if the original sample had a mass of 2.732 g and that of the insoluble solid was determined to be 1.325 g? don't include the % sign in your answer.

Which best describes how johannes kepler developed his laws of planetary motion

What is i fracture in the crust called when land move up, down or sideways

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.