Answer:
16.06 L was the initial volume of the balloon.
Explanation:
Initial moles of freon in ballon = 
Initial volume of freon gas in ballon = 
Moles of freon gas added in the balloon = n = 3.50 mole
Final moles of freon in ballon = 
Final volume of freon gas in ballon = 
Using Avogadro's law:
( at constant pressure and temperature)

16.06 L was the initial volume of the balloon.
The empirical formula for 200 grams of an organic sample which contains carbon,hydrogen, and oxygen is C3H6O
Answer: D) It conducts electricity when it is dissolved in water
The answer is hard to give without any information.
Answer:
the answer will be 2,280 cm>2