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Worked example: Balancing a simple redox equation | Chemical reactions | AP Chemistry | Khan Academy

A redox equation can be balanced using the following stepwise procedure: (1) Divide the equation into two half-reactions. (2) Balance each...

Worked example: Using oxidation numbers to identify oxidation and reduction | Khan Academy

By assigning oxidation numbers to the atoms of each element in a redox equation, we can determine which element is oxidized and which element is...

Worked example: Relating reaction stoichiometry and the ideal gas law | AP Chemistry | Khan Academy

By combining stoichiometric calculations with the ideal gas law, we can calculate amounts of reactants and products for chemical reactions...

Worked example: Calculating the amount of product formed from a limiting reactant | Khan Academy

In a chemical reaction, the reactant that is consumed first and limits how much product can be formed is called the limiting reactant (or limiting...

Worked example: Calculating amounts of reactants and products | AP Chemistry | Khan Academy

A balanced chemical equation shows us the numerical relationships between each of the species involved in the chemical change. Using these...

Physical and chemical changes | Chemical reactions | AP Chemistry | Khan Academy

Physical and chemical processes can be classified by the changes occurring on the molecular level. In general, chemical processes involve changes...

Drawing particulate models of reaction mixtures | Chemical reactions | AP Chemistry | Khan Academy

A given chemical reaction can be represented using a particulate diagram, in which the reaction mixture is depicted both before the reaction occurs...

Visualizing chemical equations using particulate models | AP Chemistry | Khan Academy

A balanced chemical equation can be visualized using a particulate diagram, in which each of the atoms involved in the reaction is represented...

Homeroom with Sal & John Stankey - Tuesday, December 1

How might we bridge the digital divide? John Stankey, CEO of AT&T, joins Sal on Homeroom this Tuesday, December 1 at 12:00 pm PT / 3:00 pm ET to...

Khan Academy Needs Your Help To Keep Going

http://khanacademy.org/donate Khan Academy is a nonprofit supported by people like you! Did you know that giving to others can make you happy? If...

Composite function limit when internal limit doesn't exist

Composite function limit when internal limit doesn't exist

Homeroom with Sal & Eric Schmidt - Tuesday, November 17

How do we inspire our future leaders into a lifetime of learning and service? Eric Schmidt, co-founder of Schmidt Futures, joins Sal on Tuesday,...