Chemical Equations Need to Be Balanced Not Only in Terms

question 49

Multiple Choice

Chemical equations need to be balanced not only in terms of the number of atoms, but also by the charge. In other words, just as there should be the same number of atoms before and after the arrow of an equation, there should be the same charge. What set of coefficients is necessary to balance the following chemical equation? ____ Sn²⁺ + ____ Ag → ____ Sn + ____ Ag⁺

• A)1, 2, 1, 2
• B)1, 1, 1, 2
• C)1, 2, 2, 2
• D)1, 1, 2, 1

---

Definitions:

Potassium Ions

Charged particles of potassium, a crucial mineral that plays key roles in cell function, including heart rhythm, muscle contraction, and nerve transmission.

Chloride Ions

Negatively charged particles (ions) that play key roles in maintaining cell stability, transmitting nerve impulses, and regulating fluid inside and outside of cells.

Sodium-Potassium Pump

A crucial cellular mechanism that moves sodium ions out of and potassium ions into cells, vital for maintaining cellular function and electrochemical gradients.

Intracellular

Relating to or occurring within a cell, encompassing the events, reactions, and processes in the cellular interior.