Chemistry

Recent Answers

2010-02-06 Chemistry (including Biochemistry) - Gas law:

Bonnie, You are correct you can use the gas laws equation to calculate the volume. If all that changes is the volume and the temperature, the other components of the equation can be algebraically removed

2010-02-05 Thermodynamics - Rijke tube:

Hi Timothy, I think the heated element needs to be quite hot in order to shift the volume of air needed. They are usually operated at dull red heat (500°C) or hotter. I am not aware of any lower limit

2010-02-04 Chemistry (including Biochemistry) - mixing bases:

Josh, In this case, the two bases would not have made any difference. The halogens all exist as negative ions (F-, Cl-, Br- and I-) in solution. They have the potential to react with a positive ion to

2010-02-04 Chemistry (including Biochemistry) - mixing bases:

Hi Josh, In most cases changing the base will change some aspect of the experiment. Either the reaction itself or the calculations used. Reply with more specifics like what type of experiment and what

2010-02-02 Chemistry (including Biochemistry) - alkali metals:

Hi Janet, Good question, thanks. The atomic radius is the size of the atom. Moving down a column in the periodic table will produce larger atoms. The atomic number, which describes how many protons are