Your friend looks at a piece of ice and says “Solids, like ice, have a fixed shape because the particles are not moving.” Is your friend correct? Why or why not?

What is the percentage by mass of silicon (si) in iron aluminum silicate (fe3al2(sio4)3)?

Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?

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?