What mass of water must be used to prepare a solution of 25.5 g of CaCl2 dissolved in water if the mole fraction. please help me

Which term describes a fracture in the earth at which land stays in the same place? a. joint b. fault c. split d. hinge

What is the correct lewis dot structure for arsenic?

To find the work done, the force exerted and distance moved are multiplied. a couch is moved twice before you are happy with its placement. the same force was used to move the couch both times. if more work is done the first time it is moved, what do you know about the distance it was moved? a) when more work was done, the couch was moved the same distance. b) when more work was done, the couch was moved less. c) when more work was done, the couch was moved further. d) when more work was done, the couch wasn't moved at all.