How many grams of H2O are produced from 30 grams of O2?

Which substances have the lowest melting points: ionic covalent, or metallic

Calcium carbonate decomposes at high temperatures to give calcium oxide and carbon dioxide as shown below. caco3(s) cao(s) + co2(g) the kp for this reaction is 1.16 at 800°c. a 5.00 l vessel containing 10.0 g of caco3(s) was evacuated to remove the air, sealed, and then heated to 800°c. ignoring the volume occupied by the solid, what will be the mass of the solid in the vessel once equilibrium is reached?

Which of the following is a solution a- brewed coffee b-tomato juice c- ranch salad dressing d- muddy water