This activity is a classroom lab where students observe and classify chemical and physical changes using the five characteristics of a chemical change, interpret their findings, and use evidence to support their findings.
- Author:
- Nikki Schilling
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454 Results
This 17-minute video lesson provides an introduction to conjugate acids and bases.
- Author:
- Khan, Salman
This 9-minute video lesson looks at some of the strongest molecular structures: covalent networks, metallic, and ionic crystals.
- Author:
- Khan, Salman
This 10-minute video lesson provides an Introduction to using the periodic table to determine electron configurations
- Author:
- Khan, Salman
This 10-minute video lesson explains how to Figure out configurations for the d-block elements.
- Author:
- Khan, Salman
This 13-minute video lesson shows how elements relate to atoms. The lesson includes the basics of how protons, electrons and neutrons make up an atom.
- Author:
- Khan, Salman
This 12-minute video lesson shows how N(t)=Ne^(-kt) describes the amount of a radioactive substance we have at time T. It is intended for students with a background in Calculus. It is not necessary for intro chemistry class.
- Author:
- Khan, Salman
This 10-minute video lesson explains how to figure out the empirical formula from a molecule's mass composition.
- Author:
- Khan, Salman
This 18-minute video looks at redox reactions to drive Galvanic Cells.
- Author:
- Khan, Salman
This 18-minute video lesson discusses the intuition behind why spontaneity is driven by enthalpy, entropy and temperature. It includes an introduction to Gibbs free energy.
- Author:
- Khan, Salman
This 12-minute video lesson discusses the properties of alkali, alkaline earth and transition metals. It also looks at Halogens and noble gases.
- Author:
- Khan, Salman
This 15-minute video lesson looks shows how to figure out the pKa of an unknown weak acid from the half equivalence point.
- Author:
- Khan, Salman
This 13-minute video lesson provides an introduction to half-life.
- Author:
- Khan, Salman
This 9-minute video lesson looks at ignoring the solution or the solid state molecules when calculating the equilibrium constant.
- Author:
- Khan, Salman
This short (2.5-minute) video corrects an error in the last video regarding hydrogen peroxide.
- Author:
- Khan, Salman
In this 10-minute video shows how to figure out the number of moles of gas we have using the ideal gas equation: PV=nRT.
- Author:
- Khan, Salman
In this 13-minute video lesson shows how to figure out the volume of an ideal gas at standard temperature and pressure (STP).
- Author:
- Khan, Salman
This 6-minute video lesson explains how to figure out the mass of oxygen we have.
- Author:
- Khan, Salman
This 5-minute video lesson whos how to figure out the molar mass of a mystery molecule at STP.
- Author:
- Khan, Salman
In this 9-minute video lesson the intuition behind the ideal gas equation: PV=nRT is discussed.
- Author:
- Khan, Salman