Methane, propane and hydrogen has equal number of molecules but different number of atoms although all three gases have different sizes of molecules. justify.

What is the percentage of hydrogen in c2h4

Choose all the answers that apply. fluorine (f) has an atomic number of 9 and an atomic weight of 18.99. fluorine has a. 9 protons b. 10 neutrons c. 18 electrons d. an atomic mass of 19 e. at least one isotope

Balance the following reaction. as2s3 + 9o2 → 2as2o3 + so2