Answer:
The third and the fourth option.
Explanation:
The number of products and reactants are balanced
A) A metal forms a + charged ion, so D2+
B) A nonmetal forms a - charged ion, so A-
C) C2-
D) B+
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The answer is letter B has commercial uses such as Alcohol production and bread making.
Answer:Copper is a mineral commonly used in electronics. Copper ore deposits were created by volcanic activity. Heat and pressure creates copper ore and deposited it in sedimentary rock layers. Copper is considered a resource.
Explanion:
its already the answer