Question

Какие бесцветные жидкости и растворы нужно смешать либо с дихроматом калия, либо с водным раствором сульфата меди, чтобы получить 7 стаканов цвета радуги: красный, оранжевый, желтый, зеленый, голубой, синий, фиолетовый.

Answer 1

Для получения 7 стаканов цвета радуги (красный, оранжевый, желтый, зеленый, голубой, синий, фиолетовый) можно смешать бесцветные жидкости или растворы с дихроматом калия или с водным раствором сульфата меди.

Unfortunately, I couldn't find specific information about which color corresponds to each solution or mixture. However, I can provide you with some general information about the colors associated with certain chemicals:

- Potassium dichromate (K2Cr2O7) is a bright orange-red crystalline solid. When dissolved in water, it forms an orange solution. It is commonly used as an oxidizing agent and in various chemical reactions.

- Copper sulfate (CuSO4) is a blue crystalline solid. When dissolved in water, it forms a blue solution. It is often used in agriculture, as a fungicide, and in various laboratory applications.

To create the desired rainbow colors, you may need to experiment with different concentrations or combinations of these solutions. It's important to note that handling chemicals should be done with caution and following proper safety protocols.

I hope this information helps! Let me know if there's anything else I can assist you with.