Wednesday, February 9, 2011

Benedict Lim Gin Hong 2P201 HCN

Chemical Bond
Hydrogen cyanide or HCN is made up of 1 hydrogen (H) atom, 1 carbon (C) atom and 1 nitrogen (N) atom. It looks something like this; H:C:::N in structural bonding where “:” is a bond. Its chemical bonding is covalent bonding as all elements are non – metal.
Compound
The compound in which I have found is hydrogen cyanide (HCN). It is indeed very poisonous and when consumed causes extensive damage to the respiratory enzymes, thus it is used mostly in rat and human poison. Worse still it can not only be transmitted should one consume the poison but also through inhaling it, making it able to take effect through the air and water. Thus its use as a human poison was fully utilized in the First World War; it is also rather effective for killing rats as small amounts can be used to kill them without having to harm humans.
But not only does HCN cause harm to people through poison gas but also through cigarettes. Though only small doses are used but should a person smoke it one too many times, there could be adverse effects such as kidney failure, lung cancer, etc. People who also fall victim to second hand smoking are equally viable to attain these illnesses too.
Constituent elements
Hydrogen or H is the most basic element consisting of only one electron and one proton. It is very light in nature giving the tendency to rise all the way to space as it is lighter than air and is mostly obtained artificially. Hydrogen is completely harmless and is instead useful to us. For one it is used in most petroleum and chemical industries for reasons such as refining crude oil for various uses.
Carbon is actually 4th most abundant element in the universe and is extremely useful. It can be used to create many materials such as lead, graphite, diamond, etc. Also it ensures the health and stability of the planet through a complex cycle known as the carbon cycle. But although it is known to be non – toxic in nature, it can form many harmful compounds such as carbon monoxide, it can also emit toxic gas when made into graphite or diamonds.
Nitrogen is the most abundant gas in our planet making it relatively unharmful. In fact it is very useful to our food cycle as a whole. This is because the food plants make actually only contribute partially to their nourishment, nitrogen is used mainly as the fertilizer when dissolved in the soil. Since plants are at the top of the food cycle, should plants die out, all life shall cease to exist.

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