Answer:
A star is made up of burning gases, while a comet is made up of ice, gases, rocks, and dust.
Explanation:
The answer Is D due to the fact the car is the heaviest one on there and would require the greates amount of force to move
Multiply the amount of moles (0.075mol) by Avagadro's number (6.02x10^23 atoms/mol) to get 4.5x10^22 atoms.
Answer:
MgO
Explanation:
Mg has valency of 2
O has valency of 2
Their valency will cancel out since they both have valency of 2. The compound form will be MgO
