Name:_______________________________ Grade & Sec.:___________ Score:_________
Teacher:_____________________________ Date:___________________ Rating:________
Activity 1
Everything has changed
Objectives:
• Perform a laboratory activity involving chemical reactions;
• Distinguish evidences of chemical reactions.
Materials:
• Mg ribbon (Mg) • Alcohol lamp
• Iron nail (Fe) • Tripod
• 30 volumes Agua oxigenada • Crucible tong
• Hydrogen peroxide (H2O2) • Beakers or small
• Manganese dioxide (MnO2) transparent bottles
• 10% copper sulfate (CuSO4) solution • Test tubes
• 10% sodium hydroxide (NaOH) solution • Denatured alcohol
• Test tube rack • Thermometer
• Vinegar • Baking soda
• Matches • Forceps or crucible
• Iron nail/shoe tack tong
• spatula or small teaspoon
Procedure A. Iron Nail-Copper Sulfate Reaction
1. Fill a test tube with 10 mL of copper sulfate solution.
2. Drop the nail gently into the solution.
3. Place the test tube in the test tube rack for a few minutes.
(You may proceed to the next procedure while waiting for any change.)
Table 1. Iron Nail-Copper Sulfate Reaction
Q1. What happened to the color of the copper sulfate solution?
Q2. What happened to the color of the nail?