12. Balance the following redox reaction by ion - electron method - Cr07- (aq) + SO, (g) -- Crd+ (aq) + S0x2 (aq) (acidic medium)
(

Which feature do highland climates have that lower elevation areas do not?

For the reaction shown, find the limiting reactant for each of the following initial amounts of reactants. 4al(s)+3o2(g)→2al2o3(s) a) 1 molal, 1 mol o2 b) 4 molal, 2.6 mol o2 c) 16 molal, 13 mol o2 d) 7.4 molal, 6.5 mol o2

What is true for a substance that releases energy