How many molecules are in a sample of water with a mass of 36 grams

Which position represents spring in the southern hemisphere? a) b) c) d)

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.

Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17