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English, 29.11.2021 23:40 sebastianmettsovghhk

Select the correct texts in the passage. Patrice has written these instructions for preparing a chemical solution. Select the two cautions or warnings in the instructions.
Patrice has written these instructions for preparing a chemical solution. Select the two cautions or warnings in the instructions.

1. Make sure you are wearing gloves.
2. Select a clean test tube to start.
3. Add 10 drops of fluid A and another 10 drops of fluid B.
4. Shake the test tube slowly and steadily.
5. Add 5 drops of fluid C.
6. Light an acetylene flame, a Bunsen flame, or a lab candle.
7. Hold the test tube over the flame, and rotate it clockwise.
8. Heat the test tube until the solution turns green.

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