Final answer:
The correct balanced equation for the reaction between Ca(s) and Sn(NO₃)₄ is 3Ca(s) + 2Sn(NO₃)₄ -> 3 Ca(NO₃)₂ + 2Sn.
Step-by-step explanation:
The correct balanced equation for the reaction between Ca(s) and Sn(NO₃)₄ is a. 3Ca(s) + 2Sn(NO₃)₄ -> 3 Ca(NO₃)₂ + 2Sn. This equation is balanced because the number of atoms of each element is the same on both sides.