Chemistry web pages:
https://www.angelfire.com/mb/biochimie/chem/regents/
Textbook: Chemistry - Visualizing Matter Holt, Reinhart & Winston
Many of you have problems relating to the mole concept. Remember the concept of Mole, mass, molecular/atomic mass, the number of atoms/molecules and Avogadro's number are interconnected like the diagram shown here:
Past Regents Exams in Chemistry updated 2001.3.11
Reference Tables for Chemistry added 2001.2.23
Brain Teaser: He Lies Becuase Boron CanNot Oxidize Flourine. New Nations Might Also Sign PleaSing Clauses.
What is the relationship of the letters in bold? What 's special about their sequence of appearance?
Quotable Quote: There are always risks when you chase after a dream because growth requires that you leave your comfort zone and enter unknown territory. But without confronting those risks and facing your fears, you'll never, as Nike says, "Just do it." Now the truth is, you may fail in some of your efforts, but you will never succeed if you are not willing to risk failure. And even if you do fail, you can learn from the experience and try again. To do that, you will need courage, and you will also need to have faith in your ability to achieve your goals.
Last modified by Ting Kwan Hung on: 2001.3.10
