Answer:
The empirical formula simply states the ratios of the elements that make up the molecule, while molecular formulas specify the amounts of each element exactly, not just giving the ratio. Let's take ethane (C2H6) as an example.
Answer:
You need a telescope and a pear of eyes
Explanation:
Ok so this is my opinion you will need a telescope and you will also need it to be night and need eyes of course!
The answer would be Thymine.
Hope this helps! (:
Answer:
I, III, and V
Explanation:
All five options are correct.
However, your instructor is probably expecting the answer I, III, and V.
These three elements are on the left-hand side of the Periodic Table. Thus, they tend to lose electrons and form positive ions most easily.
H is the most reluctant to form a cation. Its first ionization energy is 1100 kJ·mol⁻¹.
However, F and He can lose electrons to form cations.
It takes only 1700 kJ·mol⁻¹ to remove an electron from F. However, F tends to add electrons to get a complete valence shell.
Even He, with a complete valence shell, will give up a valence electron for the expenditure of only 2400 kJ·mol⁻¹.