2.Statement, the students write the rules in the lab. Safety rules to apply such laboratory. 1. learn how to use each type of equipment to understand the material. 2. electrical equipment should be installed by a distance away from water or flammable substances. 3. experiment with toxic smoke. The toxic fume filter fabric must be used, nose and mouth closed. 4. reactions that require the flame should be extremely careful. 5. students should not bring food and drink to eat in the laboratory. (Based on the answers of the students by the teacher).
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