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YOUCHEMISTRY: October 2011

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FOR EVERYONE WHO FREAKS OUT WITH CHEMISTRY AND SCIENCE IN GENERAL. The reaction occurred is just the oxidation (redox reaction) of iron. 4Fe 3O2 = 2 Fe2O3 plus lots of energy. Iron need to be very fine divided (wool) to allow the combustion keep going (the activation energy burn iron is really high in comparison to other combustible materials as gasoline, wood or carbon) and as Fe2O3 is a solid (a normal burn, for instance of a piece of carbon, releases CO2 gas) the combustion result is heavier. Russian ...

youchemistry.blogspot.com

YOUCHEMISTRY: June 2011

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FOR EVERYONE WHO FREAKS OUT WITH CHEMISTRY AND SCIENCE IN GENERAL. COMPARING THE FOUR HALOGENS. Have a look especially to the reactions of bromine and iodine with aluminium.simply spectacular! Posted by Lobo Veloz. Subscribe to: Posts (Atom). Visit our facebook page. There was an error in this gadget. Golden Rain (precipitation of lead (II) iodide). Gold like PbI 2 crystals precipitate from a saturated solution in water. The solution is obtained dissolving PbI 2 in hot wate. Para realizar nuestro experim...

youchemistry.blogspot.com

YOUCHEMISTRY: Golden Rain (precipitation of lead (II) iodide)

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FOR EVERYONE WHO FREAKS OUT WITH CHEMISTRY AND SCIENCE IN GENERAL. Golden Rain (precipitation of lead (II) iodide). Gold" like PbI 2. Crystals precipitate from a saturated solution in water. The solution is obtained dissolving PbI 2. In hot water which will become saturated as the temperature goes down. Posted by Lobo Veloz. 27 April 2012 at 09:35. The color and luster of PbI crystals are fascinating. But mind it – lead compounds are toxic. I would rather stay away from it. Visit our facebook page. KENNE...

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YOUCHEMISTRY: Lightbulb in liquid nitrogen

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FOR EVERYONE WHO FREAKS OUT WITH CHEMISTRY AND SCIENCE IN GENERAL. Lightbulb in liquid nitrogen. A bare wolfram lightbulb filament in a beaker of liquid nitrogen can be connected to an electric current safely and without decomposition of the filament, shining as a normal lightbulb. The liquid nitrogen is a non conductive and almost inert material that isolates the wolfram filament from the atmospheric oxygen that would burn it out. The video explains it very well! Posted by Lobo Veloz. Russian Progress C...

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YOUCHEMISTRY: December 2011

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FOR EVERYONE WHO FREAKS OUT WITH CHEMISTRY AND SCIENCE IN GENERAL. A compilation of chemical reactions performed by the people of The Periodic Table of Videos. Posted by Lobo Veloz. Such electron movements are at least a bit audacious but I love it! Posted by Lobo Veloz. THUNDER IN A TEST TUBE. Posted by Lobo Veloz. HYPERGOLIC CHLORINATION OF ACETYLENE. Posted by Lobo Veloz. Subscribe to: Posts (Atom). Visit our facebook page. There was an error in this gadget. COLOURFULL OXIDATION STATES OF VANADIUM.

youchemistry.blogspot.com

YOUCHEMISTRY: January 2012

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FOR EVERYONE WHO FREAKS OUT WITH CHEMISTRY AND SCIENCE IN GENERAL. THE BARKING DOG REACTION. The Barking Dog demonstration is based on an exothermic reaction between nitrous oxide (N. O) or nitrogen monoxide (NO) and carbon disulfide (CS. Ignition of the mixture in a long tube results in a bright blue chemiluminescent flash, accompanied by a characteristic barking or woofing sound. What is happening in this demonstration is a redox reaction where the oxidant is the CS. Bright blue chemiluminescent flash).

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YOUCHEMISTRY: Brainiac Alkali Metals

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FOR EVERYONE WHO FREAKS OUT WITH CHEMISTRY AND SCIENCE IN GENERAL. M(s) H2O(l) = M(OH)(ac) 1/2 H2(g) lots of energy(*)! H2(g) ½ O2(g) ignition energy(*) = H2O (g)! Posted by Lobo Veloz. Subscribe to: Post Comments (Atom). Visit our facebook page. There was an error in this gadget. Golden Rain (precipitation of lead (II) iodide). Gold like PbI 2 crystals precipitate from a saturated solution in water. The solution is obtained dissolving PbI 2 in hot wate. COLOURFULL OXIDATION STATES OF VANADIUM. Para real...

youchemistry.blogspot.com

YOUCHEMISTRY: February 2012

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FOR EVERYONE WHO FREAKS OUT WITH CHEMISTRY AND SCIENCE IN GENERAL. Lightbulb in liquid nitrogen. A bare wolfram lightbulb filament in a beaker of liquid nitrogen can be connected to an electric current safely and without decomposition of the filament, shining as a normal lightbulb. The liquid nitrogen is a non conductive and almost inert material that isolates the wolfram filament from the atmospheric oxygen that would burn it out. The video explains it very well! Posted by Lobo Veloz. At the beginning I...

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YOUCHEMISTRY: SCIENCE WEBS

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FOR EVERYONE WHO FREAKS OUT WITH CHEMISTRY AND SCIENCE IN GENERAL. Subscribe to: Posts (Atom). Visit our facebook page. There was an error in this gadget. Golden Rain (precipitation of lead (II) iodide). Gold like PbI 2 crystals precipitate from a saturated solution in water. The solution is obtained dissolving PbI 2 in hot wate. By thirstforscience A sparkler ( from wikipedia ) is a type of hand-held firework that burns slowly while emitting colored flames, sparks. COLOURFULL OXIDATION STATES OF VANADIUM.