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:
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Answer:
The value for this reaction at 1181 K is .
Explanation:
The expression of an equilibrium constant in terms of partial pressure can be given as:
Total pressure of the gases at equilibrium = P = 69.4 Torr
Partial pressure of hydrogen gas =
Partial pressure of water vapor =
(Dalton's law of partial pressure)
x = 69.4 Torr - 53.7 Torr = 15.7 Torr
The value for this reaction at 1181 K is .
Answer:
Waves are created by energy passing through water, causing it to move in a circular motion.
Explanation:
Molar mass:
iron = 55.8 g/mol
Sulfur = 32.0 g/mol
Number of moles
53.70 / 55.8 = 0.96 moles
46.30 / 32.0 = 1.44 moles
Using the values determines the entire lower proportion in moles of the elements, just divide by the smaller one
Fe = 0.96 / 0.96
Fe = 1 mole
S = 1.4 / 0.96
S = 1.5 moles
multiply them by 2.
iron : 2 * 1 = 2
Sulfur : 1.5 * 2 = 3
<span> the empirical formula is Fe</span>₂<span>S</span>₃
hope this helps!