The answer is (3)Ne. Usually, the elements belongs to group 18 all have completely filled valence electron shell. Among the four elements carbon, vanadium, neon and antimony, only neon belongs to group 18.
Resources found in lithosphere: gold and iron etc
Resources found in atmosphere: Water vapor, gases etc.
Answer:
82.0343 g/mol
Explanation:
Count each element and the number of atoms for each element. Add them all together. Use the periodic table.
Hg(CO₃)₂ + 4AgCl → HgCl₄ + 2Ag₂CO₃
