Answer : B 3Mg + 2AlCl3 - 2Al + 3MgCl2
Explanation:
Reactants side Products side
Mg - 3 Mg - 3
Al - 2. Al - 2
Cl - 6 Cl - 6
Lewis dot structure for phosphorus
Sedimentary rocks have layers because of different depositions of sediments over time.
1 mole C₆H₁₂O₆ ------------- 6 moles oxygen
3 moles C₆H₁₂O₆ ----------- X
X = (3×6)/1
X = 18 moles
So when given a chemical formula, the subscripts directly in front of the atom correspond to the amount of atoms in that compound. So we have .
There's a 2 in front of hydrogen (H), so there are 2 atoms of Hydrogen.
There are no numbers in front of sulfur (S), so it is assumed to be 1.
There is a 4 in front of oxygen (O), so there are 4 atoms of oxygen present.
So overall, the answer is D) 2 hydrogen atoms, 1 sulfur atom, and 4 oxygen atoms.