They are all measures relating to gravity and mass
The smaller number is the number of Protons *The Atomic Number*The greater number is the Atomic Mass. *Protons plus Neutrons*
Solids look like a rock or table because molecules in a solid moves more slowly then gas or liquid
Answer: 225.75g
Explanation:
Molar Mass of Fe(OH)2 = 56 + 2(16 + 1) = 56 + 2(17) = 56 + 34 = 90g/mol
1mole(90g) of Fe(OH)2 contained 6.02x10^23 units.
Therefore, Xg of Fe(OH)2 will contain 1.51x10^24 units
Xg of Fe(OH)2 = (90x1.51x10^24)/6.02x10^23 = 225.75g
1 moles of any molecules has 6.022 x 10^23 molecules in it