If 45 ml of water are added to 250 ml of a 0. 75 m k2so4 solution, what will the molarity of the diluted solution be?.

Afish fossil is found in a rock. a foot bone and tooth are found in an older layer of the same rock. what can scientists learn from the rock? a) the area changed from land to water. b) the area changed from water to land. c) the area has always been land. d) the area was once an ocean.