The answer you are looking for would be C. "She asks her lab partner which base he thinks is hardest to study"
This is the correct option out of the other choices. A. She uses a acid-base indicator to measure the pH of four different solutions B. She mixes two solutions and measures their pH before and after C. She asks her lab partner which base he thinks is the hardest to study D. She measures the temperature of a solution before and after adding H2SO4
Always wear goggles! This is to prevent chemicals or any other substance to get into your eyes. If this wasn't followed, more people could get hurt.
Clean up afterwards! Its always better to clean up so someone else couldn't get hurt! If people don't follow this, it could be a mess and someone could get seriously injured.
When smelling something, waft it to your face, and not get real close. This is to prevent getting chemicals into your body that could be poisonous. If people didn't folloe this, someone could be seriously sick.
