You are given 250 mL of a 12.0 M solution of KNO3. To obtain a 5.0 M, to what volume does the solution need to be diluted to? 600 ml
104.17 mL
0.24 mL
60 mL

Compare and contrast physical changes with chemical changes.

Which of these conditions most likely produces an unstable isotope?

Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils.the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.