Alittle aluminum boat (mass of 14.50 g. has a volume of 450.00 cm3. the boat is placed in a small pool of water and carefully filled with pennies. if each penny has a mass of 2.50 g, how many pennies can be added to the boat before it sinks?

What is the formula for the compound dinitrogen pentoxide? a. n4o5 b. n5o4 c. n4o6 d. n5o2 e. n2o5

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.

Acontrol during an experiment. might change remains constant does not exist does change