Which of the following changes has a decrease in entropy? . a. hg n2o4 (g) 2no2 (g)
b.3o2 (g) + 2kcl (s) 2kclo3 (s)
c. c2h5oh (l) + 3o2 (g) 2co2 (g) + 3h2o (g)
d. h2o (l) h2o (g)

Concerning the 10.0 ml of 0.50 m nacl to 100 ml of solution: when a solution is diluted, does it change the number of moles dissolved?

Pls! plant cells and animal cells were observed under a microscope. the characteristics of two cells are listed below. cell p: does not capture sunlight cell q: has cytoplasm but no chloroplast which statement about the two cells is correct? cell q also has a cell wall. cell q also has large vacuole. cell p also has a large vacuole. cell p also has a cell membrane.

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.