Account for the choice of laboratory tools why did you use to experiment instead of just one cup?

One of the following properties was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version. which property fits this description?

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

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.