If a hydrate of Na2SO3 is heated to 250 °C, all the water of hydration is lost. On heating a 1.687 g sample of the hydrate, 0.843 g of Na2SO3 remains. How many molecules of water occur per formula unit of Na2SO3?

What is the chemical formula of the following compound

Read the claim. breakfast is an important meal. it jump starts the body’s process of using calories to break down food. appetite can decrease with age, but going too long without eating causes metabolism to slow down. current research shows that incorporating legumes such as lentils and chickpeas into meals boosts metabolism for twenty-four hours. who might benefit from this claim? people who have a fast metabolism stores that sell exercise equipment people who take vitamin supplements grocery stores that sell legumes

How much carbon is stored in the atmosphere as co2