Compounds a and b react to form compounds c and d according to the equation: aa + bb → cc + dd. if the reaction involves intermediates and several steps, the rate law is determined by

Water molecules have a strong attraction to each other because of hydrogen bonding, allowing water to move against gravity up a plant's stem through capillary action. true false

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.

Scientists discovered fossils in several layers of the earth you see here. they found fossils of algae, snails, and clams in layer d. given that information, where do you think they found fossil evidence of simple land plants and amphibians?