17. in which of the following reactions is entropy increasing?
(A)
(B)
(C)
(D)
2SO2(g) + O2(g) → 2503(g)
CO(g) + H2O(g) → H2(g) + CO2(g)
H2(g) + Cl2(g) → 2HCl(g)
2NO2(g) → 2NO(g) + O2(g)

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

Select the correct text in the passage. which sentences describe examples of sustainable living? i live in an old apartment building downtown, but my company is based in an office park on the outskirts of the city. i drive an old car that needs to be replaced. i plan to buy a hybrid for better gas mileage, but for now i am able to carpool with a couple of friends from work. the drive to the office park is about 45 minutes each way, but we do get to work in a modern building. the architects just received a leed certification for the design.

Suppose a pair of chemical compounds a and b can react in two different ways: a + b -> c reaction 1 gives product c. a + b -> d reaction 2 gives product d. the following facts are known about the two reactions: . reaction 1 is endothermic and reaction 2 is exothermic. if a reaction vessel is charged (filled) with a and b , then at first d is produced faster than c. use these facts to sketch a qualitative reaction energy diagram for both reactions. note: because these sketches are only qualitative, the energies don? t have to be exact. they only have to have the right relationship to each other. for example, if one energy is less than another, that fact should be clear in your sketch.