Calculate the number of grams from the given number of moles. Use the periodic table to get the atomic weights of the elements. Express your answer to the correct number of significant figures.

The molecular formula for caffeine is cshion402. which of the following elements is not found in caffeine?

We are hoping to create 5.72 grams of glucose. the plant was given 4.75 liters of co2 and 2.81 g of h20. which reactant was the limiting reagent? how much excess mass did we have of the other reactant?

Which of the following is a physical change? a.burning a piece of wood b.sawing a piece of wood in half c.rust forming on an iron fence d.a copper roof changing color from orange to green