A concentrated solution of HCl is 8.0 M. What volume is needed to make .77 L of 2.00 M solution?

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

Based on its chemical properties, identify the position of each chemical family on the periodic table.

The biosphere of the earth is made up of what compound? organic or inorganic?