Given that 1 in. _ 2.54 cm exactly, indicate what conversion factor is appropriate to convert 12.3 in. to centimeters; to convert 63.52 cm to inches. For Exercises 57 and 58, apples cost $0.79 per pound.
Chemistry Chapter 3 Notes Atomic Theory Develops Lavoisier: Law of Conservation and Mass o Mass vs. Weight Mass: Measure of quantity of matter within it Weight: Measure of the gravitational pull of an object o Law of conservation of Mass: Matter is neither created nor destroyed in a chemical reaction Joseph Proust (French Chemist) o All Samples of a given compound have the same proportions of their constituent elements – always fixed ratios Daltons Atomic Theory All matter is composed of particles called : Atoms Ernest Rutherford Postulated that the atom consisted of a sphere of positive charge filled with small negatively charged partic