Characterize the following compounds as soluble or insoluble in water. (a) CaCO3 soluble insoluble (b) ZnSO4 soluble insoluble (c) Hg(NO3)2 soluble insoluble (d) PbSO4 soluble insoluble (e) NH4ClO4 soluble insoluble

Is this a single replacement reaction or there is no

2points what is the job of a scientist? a. to answer ethical questions. b. to write laws based on his or her knowledge. c. to ask and answer scientific questions. d. to ignore facts that do not support his or her theory.

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?