In experiment 1, the density of pure ethanol was found to be: question 1 options: less than 0.793 g/ml.0.793 g/ml.0.999 g/ml. greater than 0.999 g/ml.

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

c-14 is carbon-14, or radiocarbon.   it is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.