Find the heat required to convert oxygen into 1 mole of ozone at 298K and 1 atm pressure from the following:

3 O2 + 4 B → 2 B2O3 ΔHo = −1264 kJ/mol B2O3

O3 + 2 B → B2O3 ΔHo = −1406 kJ/mol B2O3

What role do bacteria play in the carbon cycle

Melissa lives in a town called greendale. she discovers that when she lights a match and holds it near her kitchen faucet, the little flame grows into a larger fire. melissa is surprised because she thought the water would extinguish the flame rather than ignite it further. her mother tells her that the water might be contaminated with dissolved methane, a primary component in natural gas. melissa investigates the matter and finds that cases of methane contamination started shortly after a company began fracking for natural gas in the area. based on this information, which three statements are plausible consequences of fracking in greendale?

Which of the following best describes the purpose of technology?