Chemical Equations Need to Be Balanced Not Only in Terms $\mathrm { Sn } ^ { 2 + }$

question 1

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? ________ $\mathrm { Sn } ^ { 2 + }$ + ________ Ag ? ________ Sn + ________ Ag?

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

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Definitions:

Vertical Intercept

The point at which a line meets the vertical axis of a graph.

Dependent Variable

A variable that changes as a consequence of a change in some other (independent) variable; the “effect” or outcome.

Independent Variable

In statistical and mathematical models, the variable that is manipulated or changed to observe its effect on a dependent variable.

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A retail establishment specializing in the sale of candies, sweets, and similar confectionery products.