The gravitational pull of the Moon is much less than the gravitational pull of Earth. Consider an object with a ma of 10 kilograms that weighs 22 pounds on Earth Which statement describes the object on the Moon? A. Its mass would be much greater. B. lts weight would be much greater C. Its we ght would be the same O D. Its mass would be the same.

Astudent is given a sample of a blue copper sulfate hydrate. he weighs the sample in a dry covered porcelain crucible and got a mass of 23.875 g for the crucible, lid, and sample. the mass of the empty crucible and lid was found earlier to be 22.652 g. he then heats the crucible to expel the water of hydration, keeping the crucible at red heat for 10 minutes with the lid slightly ajar. on colling, he finds the mass of crucible, lid, and contents to be 23.403 g. the sample was changed in the process to very light clue anhydrous cuso4. if there are again 100.0 g of hydrate, how many grams of cuso4 are in it? how many moles of cuso4? (hint: molar mass of cuso4 = 159.6 g / mole. what per cent of the hydrate is cuso4? you may convert the mass of cuso4 to moles.)

Draw metallic bonding if two copper

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation: