Rate data have been determined at a particular temperature for the overall reaction 2NO(g) + 2H2(g) → N2(g) + 2H2O(g). The value of the specific rate constant at this temperature is ___.

Trial Run Initial [NO] Initial [H2] Initial Rate (M•s–1)
1 0.10 M 0.20 M 0.0150
2 0.10 M 0.30 M 0.0225
3 0.20 M 0.20 M 0.0600

Based on the equation and the information in the table, what is the enthalpy of the reaction?

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.

Which element is the least metallic between cadmium, silver, zinc, or iron?