For the reaction, 25O3 ---> 2SO2 + O2, [SO3] = 0.37M, [SO2] = 0.25M, [O2] = 0.86. Write the Keq equation, calculate Keq, and explain what this value means.

The yearly amounts of carbon emissions from cars in belgium are normally distributed with a mean of 13.9 gigagrams per year and a standard deviation of 5.8 gigagrams per year. find the probability that the amount of carbon emissions from cars in belgium for a randomly selected year are between 11.5 gigagrams and 14.0 gigagrams per year. a. 0.340 b. 0.660 c. 0.167 d. 0.397

Quiz1. which physical state of nitrogen has the highest entropy? a solid© b gasoc liquid

Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.