Answer:
He
Explanation:
A molecule is the smallest physical unit of a substance that can exist independently, consisting of 2 or more atoms chemically combined
He is one atom of Helium
Answer:
CuSO4 + 2NaOH → Cu(OH)2 + Na2SO4
Explanation:
B-it does. It demonstrate the ability to move in response to environmental stimuli
The answer is b because if you’re fan is blowing and you spend it the opposite way, the air will be cooler
