Will mark ! which of the crystalline solids are good conductors of heat and electricity? [select all that apply] [ ] ionic solids (if dissolved) [ ] molecular solids [ ] metallic solids [ ] ionic solids (if molten) [ ] covalent network solids [ ] atomic solids

Which of the following are sources of revenue for media companies? a. direct sales to producers b.advertising and subscriptions c. online purchase d. capital investments

What is the approximate vapor pressure when the gas condenses at 70 degrees celsius

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?