Idk tbh looooooooooooooooooooool
<span>A chemical change occurs when the bonds between atoms and molecules change, and a new substance forms. This chemical change may or may not be permanent and may or may not physically affect an object. However, it always affects the chemical composition.</span>
-- below the horizon
-- clear sky
Answer:
2%
Explanation:
75% of the mass contains hydrogen 25% helium and all other elements comprising only of 2%
Answer:
25lb
Explanation:
You haven't changed (you are made up of the same atoms), but the force exerted on you is different. Physicists like to say that your mass hasn't changed, only your weight.
