How is a mole ratio used to find the limiting reactant?

The mole ratio determines which reactant ‘limits’ how much product can be used. The reactant that produces the least amount of reactant is the limiting reactant.

Explanation: For example, say 2 graham crackers + 1 marshmallow + 4 chocolate pieces = 1 smore.

If you had 17 GC, 7M, and 20 CP

17GC/2GC= 8SM, 7M/1M= 7SM, 20CP/4CP= 5SM. So chocolate pieces are the limiting reactant in this case because they produce the least amount or yield, or s’mores.

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation: