Calculate the mass of water in which 1.00 g of MgSO4.7H20 should be dissolved so that the resulting solution will be 20.0% MgSO4 and 80.0% water by mass. (MgSO4•7H20 consists of 51.17% H20 and 48.83% MgSO4 by mass)

Iwll give extra points to who gets this for ! what type of reaction is this? ?

How much heat is released upon converting one mole of steam (18.0 g) from 100.0 ∘c to water at 25.0 ∘c? show work and constants, trying to figure out how it works. only given the heat capacity for steam and water so try to only use that

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?