Answer:
Ur answer is B. I, II, and III
Explanation:
Tectonic plates can interact with each other.
Note down the formula below

Mass of the compound

Mass % of Hydrogen:-



Mass % of Oxygen:-



To calculate the number of atoms of Cr, we first find the number of moles per unit of cubic centimeter of Cr. Then, use avogadros number for the number of atoms. Calculations are as follows:
1 cm^3 (7.15 g/cm^3) (1 mol / 51.996 g Cr) = 0.14 mol Cr
0.14 mol Cr ( 6.022 x 10^23 atoms Cr / 1 mol Cr ) = 8.28 x 10^22 atoms Cr
HCI is the limiting reactant, and 4.3 mol AICI3 can be formed.