Don't Quit
When things go wrong as they sometimes will;
When the road you're trudging seems all uphill;
When the funds are low, and the debts are high;
And you want to smile, but you have to sigh;
When care is pressing you down a bit
Rest if you must, but don't you quit.

Success is failure turned inside out;
The silver tint of the clouds of doubt;
And you can never tell how close you are;
It may be near when it seems afar.
So, stick to the fight when you're hardest hit
It's when things go wrong that you mustn't quit.

My will shall shape the future. Whether I fail or succeed shall be no man's doing but my own. I am the force; I can clear any obstacle before me or I can be lost in the maze. My choice; my responsibility; win or lose, only I hold the key to my destiny – Elaine Maxwell

Monday, December 14, 2009

Chemical formula or Chemical equation??

Many students get confused of chemical formula and chemical equation. Here, I will show a few examples of chemical formulae and equations and their descriptions. Hopefully, this will help you to distinguish between the two.

Chemical formula
A chemical formula tells us the composition of a compound in a short form but understandable to anyone with, at least, basic chemistry. We have a few types of chemical formulae such like :



Chemical equation
Meanwhile, a chemical equation describes a chemical reaction, which means it describes the interaction between reacting chemical substances (called reactants) to produce new chemical substances (called products). There are also a few types of chemical equations, namely :



Remember to balance the chemical equations every time you write them.
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