If you want to download this video then go to: http://www.downloadvideos.co.nr .A small piece of sodium metal is placed in a flask containing chlorine gas. The reaction is initiated by adding a drop of water. A close up view of this extremely dangerous reaction is shown.
A simple way to make your friend impress...... Dry ice was first observed in 1825 by the French chemist Charles Thilorier.[3][4] Upon opening the lid of a large cylinder containing liquid carbon dioxide he noted much of the carbon dioxide rapidly evaporated leaving solid dry ice in the container. Throughout the next 60 years, dry ice was observed and tested by many scientists.Dry ice is typically produced in two standard sizes: solid blocks and cylindrical pellets. A standard block is most common and will normally be about 30 kg. These are largely used in the shipping industry because they sublime slowly due to a relatively small surface area. The pellets are around 1 cm in diameter and can be bagged easily. This form of dry ice is more suited to small scale use, for example at grocery stores and laboratories.
If you want to download this video then go to this site: http://www.downloadvideos.co.nr .Magnesium is placed in a cavity in a block of dry ice. The magnesium is ignited and covered by another block of dry ice. The magnesium continues to glow, due to its reaction with carbon dioxide. This demonstration is difficult to set up.
If you want to download this video then go to this site: http://www.downloadvideos.co.nr . A cast iron bomb filled with water is placed in a dry-ice/acetone slush and covered with a wooden box. When the water in the bomb freezes, the bomb explodes. This demonstration is dangerous and the required equipment can be difficult to obtain.
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explosion
This Dog Can Bite you, so be careful.... Dogs are highly social animals sometimes regarded as the most social animals on earth. This can account for their trainability, playfulness, and ability to fit into human households and social situations. This similarity has earned dogs a unique position in the realm of interspecies relationships despite being one of the most effective and potentially dangerous predators. Dogs and humans at times co-operate in some of the most effective hunting in the animal world; in that context, dogs are superpredators.The loyalty and devotion that dogs demonstrate as part of their natural instincts as pack animals closely mimics the human idea of love and friendship, leading many dog owners to view their pets as full-fledged family members. Conversely, dogs seem to view their human companions as members of their pack, and make few, if any, distinctions between their owners and fellow dogs. Dogs fill a variety of roles in human society and are often trained as working dogs.
How to make a dry ice bomb
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