25. in the investigation shown the changes in heat of the copper is greater than the change in the heat of the water. what error could account for this apparent violation of the law of conservation of energy?

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

Which is true of a liquid? it has a definite volume but not a definite mass. it has a definite mass but not a definite volume. it has a definite volume but not a definite shape. it has a definite shape but not a definite volume.

If a particle has z = 25 and 23 electrons, what is its charge?