The black powder formed at the end of the decomposition reaction is copper oxide (CuO). How many moles of copper oxide (MM = 79.545 g/mol) were produced (number of moles = mass (g) / molar mass (g/mol))? Choose the closest answer.

In order to calculate the amount of heat transferred you must know the __ and specific heat of the material, as well as the change in temperature. a. volume b. density c. mass d. enthalpy

One way that radioactive waste is treated is by burying it in repositories. the repositories are found only in states with very low populations. true or false? a. trueb. false(also i meant to put high school but it put down middle school instead)

Take a look at this dandelion. the yellow flower on the right is pollinated and the seeds on the left are transported by