If 392 cubic cm of helium at 32 degrees Celsius and 925 torr are cooled to -15 degrees Celsius and the pressure is reduced to 775 torr, what will be the new volume of the gas?

Consider the reaction: 2al(s) + fe2o3(s) → al2o3(s) + 2fe(s) the δhf for fe2o3(s) = -824.3 kj/mole. the δhf for al2o3(s) = -1675.7 kj/mole. finish the equation. δhrxn = [(1)( kj/mole) + (2)( kj/mole)] - [(1)( kj/mole) + (2) ( kj/mole)]

How many moles of ccl4 are in 3.55l

Using the periodic table, complete the following. element: hydrogen symbol: h₂ molecular weight: g mass of one mole: g/mol