Pls help me if your good at science I’ll mark brainliest ion know where my brain went the past few weeks when learning this...

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)]

What items could scientists use to date a layer of rock

The element values of a series rlc bandpass filter are r = 5 , l = 20 mh, and c = 0.5 μf. *(a) determine ω0, q, b, ωc1 , and ωc2 . (b) is it possible to double the magnitude of q by changing the values of l and/or c while keeping ω0 and r unchanged? if yes, propose such values, and if no, why not?