What is enthalpy a measure of? a. the heat content of a system. b. the kinetic energy of a system. c. the number of moles of reactant in a system. d. the disorder of a system.

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution

Why does earth rotate? because earth is formed from cold gases collapsing due to gravity because the matter in the nebula that formed earth was spinning because earth forms more than 99% of the mass of the solar system because the hydrogen atoms inside the nebula fused to form helium

Astudent pours 10.0 g of salt into a container of water and observes the amount of time it takes for the salt to dissolve. she then repeats the process using the same amounts of salt and water but this time she slowly stirs the mixture while it is dissolving. the student performs the experiment one more time but this time she stirs the mixture rapidly. the dependent variable in this experiment is: time for salt to dissolve speed of stirring amount of water mass of salt