Which sentence most clearly uses connotation to express a feeling of anger?

Based on context, the word “insoluble”most likely means?

You need to start an experiment and the instructions are to mix 2 g of sodium bicarbonate with 50 ml of distilled water and then mix the solution. describe what lab apparatus you would use and what safety precautions you must observe when completing this experiment.

What do critics say about art happenings and flash mobs