Bromomethane and hydroxide are the components used in these examples. Sal demonstrates how the rate-determining steps in these Nucleophilic Substitutions involve both reactants. The way Sal attempts humor with the technical term of...

Two equations. Wait! They don't look like the same kind of equations. How do you solve a system of equations when one equation is linear and the other is a quadratic? Watch this video as the instructor illustrates how to use the...

Two equations and two unknown variables in a word problem. Don't cry! Follow the instructor through these nine steps to find the solutions. Identify the variables, write the equations, solve for one of the variables, use the substitution...

The quintessential word problem that makes everyone scream and run away. But wait, come back! Time, distance, when will they get there? You are really only working with one formula: distance= rate times time. You can do this. View this...