Question

Why do Ca, Al and Ni exist in nature respectively as carbonate, oxide and sulphide?​

Answer 1

Answer:

because they cannot exist indipendently

they need to form the bonds with other to exist in nature

Answer 2

Answer:

like my answer if you like it and follow me and mark as brainlist please

Explanation:

Metals occur in nature in free as well as combined form. Metals having low reactivity show little affinity for air, moisture, carbon dioxide or other non-metals present in nature. Such metals may remain in elemental or native  ...