Assume that 50,000 yd3of the soil from the borrow pit is to be delivered to an embankment at a construction site. By the time it reaches the site, due to evaporation, the water content is 9%. This soil will be compacted to the maximum dry density. Determine the total amountofwater (inlb) that must be added to the soilto increase the moisture content to the optimum level.

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?