Answer:1. 
2. 
3.
4. 
5. 
Explanation:
Molecular formula is the chemical formula which depicts the actual number of atoms of each element present in the compound.
Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.
1. 
has empirical formula of
2. 
has empirical formula of
3. has empirical formula of
4. has empirical formula of
5. 
has empirical formula of
Do 8.50 moles divided by .3 liters
Answer:
It allows chemists to deal with a large number of atoms.
Explanation:
Instead of saying 6.022 x 10 ^23 atoms, chemists can say that is one mole, allowing bigger numbers of atoms to be more easily attained.
19. D
20. Sorry don’t know but if I had to guess it would be B
21. A because fluorine has a higher electronegativity
22. D
23. B
24. Again don’t really know but I would guess D
25. A
Answer:
The number of molecules in CH4, also known as methane, is merely 0.85 * 6.02210 * 10 ^ 23 (Avogadro's Number). This amounts to <em><u>approximately 5.1 * 10 ^ 23 molecules</u></em><u> with the correct number of significant figures</u>.
