The valve between a 5.00 L tank containing O₂(g) at 9.00 atm and a 7.00 L tank containing Ne(g) at 6.00 atm is opened. Calculate the final pressure in the tanks assuming constant temperature.

If you burn 10 kilograms of wood in a fire (combustion) what is the weight of the products after the fire has finished burning the wood?

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.

How do dying stars contribute to the formation of planets