Is turning the lights on a physical or chemical change? explain why?

Between 2014 and 2016, more than 25,000 children in flint, michigan, drank water that was contaminated with lead from lead pipes. during this time, the city claimed the water was safe to drink. which of these actions could the city have taken to ensure that the drinking water was free from lead?

0.2348 grams of pbcl2 used to form 44.0 ml of solution.

The best solution for preventing harm to people and pets from severe hurricanes involves determining and warning residents about what