Chemical analysis of a reaction mass resulting from the reaction of 2.000 grams of chromium ( molar mass= 52.0 g/mole) with pure oxygen (molar mass= 16.0 g/mole) yielded a material with a weight of 3.846 grams
which of the following was prepared? cr0, cr203,cr02 or cro3?

Chemical kinetics what was the rate of reaction in trial 3? choose the closest answer.

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

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