Answer:

Step-by-step explanation:

Sorry i needed points but i hope u find the answer u needed
The approximate total mass= number of atoms * weight of an atom.
The approximate total mass=3.06 10²³ atoms. (1.67 10⁻²⁴ grams/1 atom)=
=0.51102 g ≈ 0.51 g
Answer: the spproximate total mass is 0.51 grams.
Answer:
C
Step-by-step explanation:
H
Answer:
1. is 0.9 or 9/10. 2. is 43/36 or 1.19