They are nitrogen, oxygen, hydrogen
Answer:
true!
Explanation:
if youre going by the scientific method, observations are mainly first. then questions, research, etc
Answer:
Both are chemical changes.
Explanation:
They are chemical changes because when when you melt the sugar to make caramel a new substance is formed. The same with cookies. You don't start out with cookies, you start out with dough. And then when you cook the dough a new substance is formed which is the cookies.
Diffusion is a process that results from the random motion of molecules and results in a net movement of matter from a high-concentration region to a low-concentration zone.
3. 6.02 x 10^23 atoms of At
