Mgx2 very low density highly reactive diatomic using the periodic table, determine which element these characteristics most likely describe. a)fluorine b)iodine c)oxygen d)sodium

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?

According to the kinetic-molecular theory, what happens to a liquid when it is transferred from one container to another? the volume and the shape stay the same. the volume increases to fill the new container, but the shape stays the same. the volume stays the same, but the shape changes to fit the new container. the volume and the shape change to fill the new container.

What mineral is this? color: varies streak: colorless indistinct/fracture luster: non fluoresces