10. A mixture weighing 7.800 grams consists of 32% silicon dioxide, 15% sodium chloride, and the rest ammonium chloride. Determine the mass of ammonium chloride in the
ternary mixture.

Transportation is the largest single source of air pollution in the united states. air pollution can harm the environment and human health. which technology could offer a solution to this problem? mufflers that reduce noise motors that run on electricity tires that improve gas mileage

Compare and contrast physical changes with chemical changes.

Compare sympathetic and parasympathetic