What volume of 2.0 m nacl would be needed to make 200 ml of 1.0 m nacl?

Water (2510 g ) is heated until it just begins to boil. if the water absorbs 5.09×105 j of heat in the process, what was the initial temperature of the water?

If the density of water is 1.0 g/cm3, which of these materials would float in water, based on their densities? check all that apply. aluminum cork iron lead wax

Which of the following are correct values for the ideal gas laws constant r