Determine the heat of reaction of the following chemical reaction using the standard heats of formation from the table in the Chemistry B Information Sheet. Show all of
your work. Then classify each reaction as endothermic or exothermic.
C2H5OH (1) + 3 O2 (g) → 2 CO2 (g) + 3 H20 (1)

Which of these conditions most likely produces an unstable isotope?

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?

The reactions shown here can be combined to make the overall reaction c(s) + h2o(g) ⇌ co(g) + h2(g) by reversing some and/or dividing all the coefficients by a number. a. c(s) + o2(g) → co2(g) k=1.363×10^69 b. 2 h2(g) + o2(g) → 2 h2o(g) k=1.389×10^80 c. 2co(g) + o2 (g) → 2 co2(g) k=1.477×10^90