CuO + H2 → Cu + H2O(l) ΔH = -130.6 kJ

What is the value of ΔH if the reaction produced water vapor instead of liquid water? (ΔH = 44 kJ/mol for the phase change H2O(l) → H2O(g))

Butadiene undergoes a reaction at a certain temperature in the gas phase as follows: 2c4h6(g) --> c8h12(g) the following data were collected for this reaction: time (min) [c4h6] (m) 0 0.36 15 0.30 30 0.25 48 0.19 75 0. determine the order of the reaction and the rate constant. 1st order and k = 4.3x10 -4 s-1 1st order and k = 2.3x10-4 s-1 2nd order and k = 4.3x10-4 s-1 2nd order and k = 2.3x10-4 s-1 zero and k = 4.3x10-4 s-1

There is a single path for electrons. the current decreases when additional resistors are added. the current will be the same in each resistor. these statements best describe a(n) circuit.

The variability in marine salinity between habitats does not impact the fish living there. select the best answer from the choices provided t f