Ateacher wants to perform a classroom demonstration that illustrates both chemical and physical changes. which would be the best demonstration that she could use? a) bending a piece of aluminum b) breaking a matchstick c) dissolving sugar in water d) burning a candle

Asample of gas occupies 17 ml at –112°c. what volume does the sample occupy at 70°c a. 10.6 ml b. 27 ml c. 36 ml d. 8.0 ml you

Afamily is one another name for a group on the table of elements.

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.