Explain the process of how to determine the charge on the T tape and the B tape using a balloon. Be very specific in your explanation by including terms such as: positively charged, negatively charged, attract and repel.

The density of an unknown gas at 98°c and 740 mmhg is 2.50 g/l. what is the molar mass of the gas with work showed?

How can you use chemical equations to predict the products of the reaction you can carry out?

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