Lighting a match – Light a single match (refer to safety precautions listed above).
Lighting a candle: Light a single candle. Observe the candle for 45 seconds.
Heating Sucrose: Take a pinch of sugar and place it on the foil. Using the tongs, hold the foil over the candle for approximately 1 minute.
Crushing chalk – Use a mortar and pestle to crush a piece of chalk.
Mixing crushed chalk with vinegar – In a test tube, mix a small amount of the crushed chalk from Procedure #4 with vinegar.
Mixing crushed chalk with water – In a test tube, mix a small amount of the crushed chalk from Procedure #4 with water.
Dissolving sucrose in water – In a test tube, dissolve a small amount of sucrose in water.
Mixing CaCl2 and Na2CO3 solutions – In a test tube, combine several drops each of the calcium chloride and sodium carbonate solutions.
Blowing bubbles in BTB—In a beaker, pour 25 mL of BTB in the beaker along with 25 mL of distilled water in a beaker. Using a straw, blow bubbles in the solution for 1 minute.
Burning Steel Wool—Obtain a small piece of steel wool. Using the Bunsen burner, hold the piece of steel wool over the flame.
Food coloring and water—Fill a beaker with 50 mL of water, place 3 drops of food coloring in the water.
Ammonia and Alka Seltzer—Fill a graduated cylinder with 25 mL of Ammonia. Place 3 drops of Universal Indicator in the graduated cylinder and stir the solution. Drop ½ an alka seltzer tablet in the graduated cylinder.
NaOH and water—Dissolve 2-3 pellets of NaOH in approximately 5 mL of water inside a test tube. (Use your five senses on the test tube)
Phenolphthalein in NaOH—Add 2-3 drops of phenolphthalein to NaOH solution(from previous activity #13).
HCL to NaOH mixture—Add several drops of HCl to NaOH solution until an observation is noticeable.
Zinc and HCl-Add 1 piece of zinc to 1/3 full test of 0.5M HCl. See instructor for chemical.
Gas Collection of Zinc and HCl—Use a test tube and invert over previous activity #16 to collect gases and use a candle to check for gases.
Record and collect all observations in the table provided.