Flame Test Experiment

Purpose:To demonstrate and classify the characteristics of a chemical reaction. 

Objective:Describe the difference between a physical and chemical change.

Data Table:

CHEMICAL COMPOUNDS:        ELEMENTS INVOLVED:          CHARACTERISTICS

*barium chloride                             Ba                               yellow   

*calcium chloride                            Ca                                orange

*lithium chloride                             Li                                 hot pink

*potassium chloride                        K                                  purple/light                     

*sodium chloride                           Na                                 fire orange

*strontium chloride                        Sr                                    red

*unknown                                               Hot pink and yellow.barium&lithium

file://localhost/Users/Guest1/Desktop/flame_test.jpg

Analysis Questions:

1.) What indicators determine that a chemical change has occurred?-color orders and changing forms

2.) What is emitted when a chemical change takes place in the flame test?

-color change

3.) What group from the periodic table do these elements exist?

-Ba,Ca,Sr,Li,K,Na=Alkaline earth metals

4.) Do any two elements give the same spectrum of color?explain why?

-Ba+Ca=alkaline earth metals

5.) Recall what a catalyst is in a chemical reaction.What was the catalyst in these reactions?

-Flame

file://localhost/Users/Guest1/Desktop/Wood%20salts2.JPG

Video

http://youtu.be/OwM_P_4CmXE