At which stage does a gas form in a gas formation reaction? the reactants stage the product stage the liquid stage the solid stage

This element exists in adundance in the sun. explain how you would go about capturing sunlight. would this captured sunlight contain any of the element?

What’s the percent by mass of carbon in c10h14n2

Write the empirical chemical formula of calcium with a mass percent of 38.8, phosphorus with a mass percent of 20.0, and oxygen with a mass percent of 41.3.