How many atoms make up one mole of na?

What mass of carbon dioxide is produced from the complete combustion of 4.50×10−3 g of methane?

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

Calculate the concentration of all species in a 0.165 m solution of h2co3.