How many moles of water are there in 45 g of water?

Does a promoter determine whether a gene is expressed? What is the difference between cycle and hertz? What feature on the earths crust gives use a view of how the earth looks inside? If you have been given an orange liquid and told to describe his property read what methods would you use to observe measure and describe the physical properties of this orange liquid without changing? How many phenotype are there? What is the differences between Canada and antarctica? What happens to comets whose orbits are parabolas? Why rock cycle has nor a beginning not an end? How do you convert mass to length? Does poeple talk spanish in kenya? What is an irrigated grassland called? What does oxigen use for? Why do geographers use a variety of maps to represent world? South America of the Prime Meridian? If Its 11PM where you are what time is it in Berkeley California? What group on the periodic table usually doesn't make compounds? Is the boundaries of tectonic plates in a volcanic area? What tissue is composed of densely packed protein fibers that are running parallel and form a cord There are no striations but small nuclei are visible? What is the standard scale for a military map? Are there volcanoes or earthquake in Chile?