Why is dna important to every living thing

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?

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

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.