Answer:
The Great Lakes were formed by a retreating glacier that dug out large basins. Then as the glacier melted, the water filled in those basins
There would be 55.8 g present
5-chloro-2-pentyne. The chain must be numbered starting with the end nearest the triple bond.
B,Si,Ge,As,Sb,Te, and At are all the metalloids on the periodic table of elements.