CHEMISTRY HELP PLEASE
how do you determine what unit to put k in (rate law)?

What is the number of moles in 15.0 g ash3?

How have the greenhouse gasses increased from the year 2000 to 2018

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)]