Are there nuclear reactions going on in our bodies? Are two atoms of the same element identical?
Can sound waves generate heat?
Can the decay half-life of a radioactive material be changed?
Do atoms ever actually touch each other?
Does an atom have a color?
Does an electron in an atom move at all?

What is the number of moles in 15.0 g ash3?

For the following dehydrohalogenation (e2) reaction, draw the zaitsev product(s) resulting from elimination involving c3–c4 (i.e., the carbon atoms depicted with stereobonds). show the product stereochemistry clearly. if there is more than one organic product, both products may be drawn in the same box. ignore elimination involving c3 or c4 and any carbon atom other than c4 or c3.

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.