Lesson 2
Home Up Safety Precautions Lab Techniques Observing Chemical Reactions Chemical Reactions Creating Materials in New Phases Chemical Reactions Creating Materials with New Colors Chemical Reactions Creating or Using Heat Energy Describing Chemical Reactions Distinction Between Chemical and Physical Changes Quick Quiz on Chemical Reactions

 

Observing Chemical Reactions

Let's go on now to some chemical reactions. Let's preview several of these, so that I can point out some things to look for in the reactions. The pictures here will give you an indication of what happens in the reaction, but they will not take the place of observing the reactions yourself. You will repeat them in the lab to get a first hand look at the reactions.

Test tubes ans spot plate [1rx1ttsp.JPG]We can either use small test tubes or a spot plate. The test tubes hold more materials; the spot plate holds less, but the spot plate is a whole lot easier to wash. (The following examples correspond with Exercises 2-4 in your workbook.)