stella013108
16.10.2020 •
Chemistry
What is an indicator? What does it tell you about solutions?
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Ответ:
Pure water is neutral, and so is petrol. An indicator is a substance that changes colour when it is added to acidic or alkaline solutions. You can prepare homemade indicators from red cabbage or beetroot juice - these will help you see if a solution is acidic or alkaline.
Ответ:
um
Explanation:no idea sry