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Crush up the rock salt

1. 2. Crush up the rock salt. Add the rock salt to 50 cm 3 of water and stir for 2 minutes. 3. 4. Heat for 5 minutes and then cool for 5 minutes (TAKE CARE). Filter it. 5. Weigh an empty evaporating basin and write the mass down. 6.

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Crush up the rock salt

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  1. 1 2 Crush up the rock salt Add the rock salt to 50 cm3 of water and stir for 2 minutes 3 4 Heat for 5 minutes and then cool for 5 minutes (TAKE CARE) Filter it

  2. 5 Weigh an empty evaporating basin and write the mass down. 6 Pour the liquid into the evaporating basin. Stand it on a piece of paper with your name on the window sill. Clear up and then… Explain why you did each step in the method.

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