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7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

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?

Mr. rose asked his student to draw a quadrilateral with four unequal sides. an example of this kind of quadrilateral