The average rainfall of a prairie land is: 25-100 cm each year
50-100 cm each year
150-200 cm each year
under 25 cm each year

What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state. a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car

Using the periodic table, complete the following. element: hydrogen symbol: h₂ molecular weight: g mass of one mole: g/mol

Balance the following reaction. as2s3 + 9o2 → 2as2o3 + so2