Given 2CuO (s)  2Cu (s) + O2 (g) ΔH = 314.6 kJ. Determine the heat of
formation of CuO (s)

Asap! how do you lengthen a pattern piece? (family and consumer science, sewing)

Which substance has non polar covalent bonds

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