Reactivity Lab

Procedure A:

Process and Procedure:

• Put 2 calcium turnings into the weighing dish or small beaker

• Obtain 2 small pieces of magnesium ribbon, approximately 1 cm each, and a short piece of aluminum foil

• Place 24-well reaction plate on top of white paper

• Use pipet to add 20 drops of distilled water to wells A1-A3

• Test the water in those wells withj piece pf red litmus paper and record inital color of the "litmus test"

• Use forceps to add one piece of calium to A1

• Use forceps to add one piece of magnesium ribbon to well A2

• Tear off a 2 cm piece of aluminum foil and roll it into a loose ball, then put into well A3

• Observe and record data

• Test water wells with litmus paper after reactions

• Use a pipet and add 20 drops  of 0.5M HCl in to wells C1-C3

• Use forceps to add one piece of calium to A1

• Use forceps to add one piece of magnesium ribbon to well A2

• Tear off a 2 cm piece of aluminum foil and roll it into a loose ball, then put into well A3

• Observe and record observations

• Test the combustion of the reactions by bringing a lighted wooden splint to the space just above each well C1-C3

• Using a thermometer, measure the temperature of each solution C1-C3

• Dispose of waste and rinse out wells

Procedure B:

• Place 24-well reaction plate on the top of a sheet of black paper

• Use a pipet to add 20 drops of alkalline earth metal solutions as follows:

MgCl2 to wells A1-C1

CaCl2 to wells A2-C2

SrCl2 to wells A3-C3

BaCl2 to wells A4-C4

• Use a clean pipet and add 20 drops of the unknown alkaline eatht metal solution to wells A5-C5

• Add 20 drops to testing soltion to the proper wells:

Na2CO3 to wells A1-A5

Na2SO4 to wells B1-B5

KIO3 to wells C1-C5

• Record observations- if a solid forms, write PPT (precipitate) in the appropriate data table space, and if no reaction occured, write NR (no reaction) in the appropriate data table space

• Dispose of waste properly

Data Tables: