This question is about chemical tests for water.
Complete these sentences about the test for water using the words from the list.
hydrated | green | anhydrous | white |
blue | sulfur | yellow | sulfate |
Cobalt chloride paper will turn from .......................... to pink in the presence of water.
.............................. copper ........................ will turn from ........................... to blue in the presence of water.
Describe how a student could test to see if a sample of water is pure.
Explain why tap water is not used for chemical reactions.
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