What is molarity? *the ratio of grams of solute to liters of solution *the ratio of moles of solute to milliliters of solution *the ratio of moles of solute to liters of solution *the ratio of grams of solute to milliliters of solution

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils

All cells are made of four types of acids, lipids, proteins, and carbohydrates.