The diameter of a carbon atom is 0.154 m. what is the this number expressed in scientific notation

Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.

What is the number of moles in 15.0 g ash3?

How many moles of potassium hydroxide are needed to completely react with 2.94 moles of aluminum sulfate