Which of the following would reduce your carbon footprint? choosing paper instead of plastic grocery bags riding a bike to school instead of walking using re-usable glass plates instead of paper plates using hot water instead of cold water to wash your clothes

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

How are isotopes of the same chemical element alike? how are they different?

Cryolite, na3alf6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. start this question by first balance the chemical equation.1.) balance the equation: - alo3(s)+naoh(l)+hf(> na3alf6+h2o(g). 2.) if 17.5 kilograms of al2o3(s), 51.4 kilograms of naoh(l), and 51.4 kilograms of hf(g) react completely, how many kilograms of cryolite will be produced? 3.)which reactants will be in excess, (al2o3, naoh, or hf) 4.)what is the total mass of the excess reactants left over after the reaction is complete in kg?