Calculate the number of milliliters of 0.472 m ba(oh)2 required to precipitate all of the ca2+ ions in 197 ml of 0.671 m cabr2 solution as ca(oh)2. the equation for the reaction is: cabr2(aq) + ba(oh)2(aq) ca(oh)2(s) + babr2(aq)

What are transitions between a liquid and gas called? identify which way they are transitioning

Predict whether the changes in enthalpy, entropy, and free energy will be positive or negative for the boiling of water, and explain your predictions. how does temperature affect the spontaneity of this process?

3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?