What is the final step of a scientific investigation? speaking at a conference reporting the results developing a web site writing in a scientific journal

How many moles of water are created if 3 moles of hydrogen react completely with excess oxygen?

The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?

Imagine if during the cathode ray experiment, the size of the particles of the ray was the same as the size of the atom forming the cathode. which other model or scientific observation would have also been supported? 1. this would support dalton's postulates that proposed the atoms are indivisible because no small particles are involved. 2. this would support bohr's prediction about electrons moving in orbits having specific energy. 3. this would support bohr's prediction about electrons being randomly scattered around the nucleus in the atom. 4. this would support dalton's postulates that proposed that atoms combine in fixed whole number ratios to form compounds.