3 Cu + 8 HNO3 = 3 Cu(NO3)2 + 2 NO + 4 H2O i dont know how to explain it but this is the balanced equation basically all the atoms of every element has to be balanced
Answer: can u explain ur question please?
Explanation:
The answer is Strontium(Sr). The reactive increase from right to left. And this element has two valence electrons. So Rb is not correct. Then the very reactive metal is Sr.