Functions of the skin other than thermoregulation

What is the value of keq for the reaction expressed in scientific notation?

What is a possible quantum number set for an electron in the 3s orbital of a magnesium atom

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