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00:37:00

Oxidation Numbers and Equations

by Colin Byfleet
Oxidation Numbers and Equations
for 14-19 and upwards,
Teaching modules | 14-19 and upwards | 15 years ago | 2696 views
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The concept of oxidation and reduction is explained and generalised using oxidation numbers with ionic and covalent examples. Several equations are balanced, using the oxidation number method to fix various atomic ratios.

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00:11:00

Energy Challenges: Power from Hydrogen

by Jeff Whalen
Energy Challenges: Power from Hydrogen
for 18-22 and upwards,
Postgraduate presentations | 18-22 and upwards | 15 years ago | 1981 views
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We are faced with energy challenges and the promise of power with hydrogen. The fuel cell and solid state hydrogen storage methodologies are currently limited by materials and represent the cutting edge of energy technology. Implementation to a real ....

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00:07:00

Synthesis of Stable, Water Soluble Gold Colloids

by Layal L Rouhana
Synthesis of Stable, Water Soluble Gold Colloids
for 22 and upwards,
Lectures | 22 and upwards | 16 years ago | 2471 views
Rating:

Ligand exchange reactions were utilized in the production of aggregation-resistant gold nanoparticles, having an average diameter of 5 nm, comprising a gold core capped with a mixed shell of citrate and zwitterionic ligands. The prepared nanoparticl....

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00:05:00

What are we made of?

by Harry Kroto
What are we made of?
for 11-14 and upwards,
Lectures | 11-14 and upwards | 16 years ago | 2018 views
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Development of the ideas which persuaded us to accept the theory of atoms and molecules as constituents of matter.

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00:28:00

The Discovery of Element 101

by Colin Byfleet
The Discovery of Element 101
for All ages,
Interviews | All ages | 16 years ago | 4350 views
Rating:

A first-hand interview of the moment of this discovery from Greg Choppin who worked with Glen Seaborg.

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