Answer: 2.17 x 10^23 molecules
Explanation:
1mole of H2O contains 6.02x10^23 molecules.
Therefore 0.360mole of H2O will contain = 0.36 x 6.02x10^23 = 2.17 x 10^23 molecules
The number of significant figures in 369,132,000 is 6
5 miles are equivalent to 8,800 yards
so b. is the correct answer. plz like and hope it helped
Oxygen- atomic number 8
1s² 2s² 2px² 2py¹ 2pz¹
Mass = m = 40 grams
Volume = V = 9 cm³
Density = d = ?
Density is defined as the ratio of mass and volume.
So,
d = m/V
Using the values, we get
d = 40/9 = 4.44 g/cm³
This means the density of material would be 4.44 g/cm³