Answer:
not 100% but i think its 1.57x10^20
Explanation:
5.25x10^-4g / 2.016g
2.60x10^-4 x 6.022x10^23= 1.56x10^20 molecules
Answer:
7) 50 8)4
Explanation:
I answered the question what do you want to gave me
8,002.5 would be written as
8.0025 x 10 and 3
because you move the decimal place 3 times to the left.
