Alkina metals all have the similar proteries
I think the correct answer from the choices listed above is option A. A can of diet soda will float in water while a can of regular sugar soda will sink. This is due to the reason that the regular soda is more dense than the diet soda. Hope this answers the question.
Answer:
I think it would be:
NaCO3 (s)-->Na2O (s) + CO2 (g)