3) The rate law for a reaction between NO(g) and H2(g) to produce N2(g) and a
H2O(g) is: rate = k[NO]2 [H2].
a. What is the order for the reaction with respect to NO?
b. What is the order for the reaction with respect to H2?
c. What is the overall order of the reaction?
d. What are the units for the rate constant, k?

in theory, limestone is composed principally of the compound calcium carbonate - caco3, but in reality this compound is deposited in conditions involving a number of other compounds as impurities so it ends up being a mixture of many compounds.

hope this : -)

tony (lordcaos066)

the ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (uvr) from the sun, protecting life on earth from its potentially harmful effects. when the sky is clear, there is an inverse relationship between stratospheric ozone and solar uvr measured at the earth's surface.