1) How much heat needs to be added or removed to turn 3 kg of solid aluminum at 2519°C to 3 kg of gaseous aluminum at 2519°C? 2) How much heat needs to be added or removed to turn 8 kg of liquid copper at 1084°C to 8 kg of solid copper at 1084°C?

the moon affects the earth gravitation ally, causing certain motions of that body and also producing tides in its ocean and atmosphere. the tidal wave in our atmosphere is, however, far too minute to be an effective cause in any known meteorological phenomenon.

explanation:

when heated, the valance electrons increased their speed and transferred the heat from electron to electron.   i just took the test.

305.7

explanation:

density =m/v

density =917/3.00

density = 305.

approximately = 305.7

in four significant figures