Which best explains how elements are arranged on the modern periodic table? A) elements are arranged from fewest protons to most protons B) elements are arranged from most protons to fewest protons C) elements are arranged from fewest neutrons to most neutrons D) elements are arranged from most electrons to fewest electrons

Which characteristic of water it form droplets? a. low specific heat b. nonpolar structure c. high surface tension d. ability to dissolve substances

Displacement is the slope of a velocity vs. time graph a. true b. false

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?