On April 04, 2022, teacher Sotheavy Ry led grade 7A students of American Intercon School, Phsar Thmey Campus to conduct a Chemistry experiment on “Chemical Reactions”. At the beginning of the experiment, the teacher showed as well as described the experimental materials such as: glass, base, vinegar, egg, baking soda powder, candle, and lighter. It should also be stated that the purposes of the experiment are to:
• Describe the new product from the chemical reaction between vinegar and eggshell
• Describe the new product from the chemical reaction between vinegar and baking soda
• Define the chemical reactions.