Calcium carbonate will be formed which is insoluble in water.
The answer is a) K and CrO4 only.
The Group 3A metals have three valence electrons in their highest-energy orbitals (ns2p1). They have higher ionization energies than the Group 1A and 2A elements, and are ionized to form a 3+ charges. The Group 3A metals are silvery in appearance, and like all metals are good conductors of electricity.
Answer:3 atoms of Mg 6 atoms of O and 6 atoms of H
Explanation: