Answer:
Should be A, but also I think there should be an arrow between O2 and 2H2O
Answer: 0.39mol of the steam are in the cooker.
Explanation:Please see attachment for explanation
The answer is that all of them are correct.
The elements within a group in the table have similar properties. ... In general, how can the periodic trends displayed by elements be explained? What is the underlying cause of periodic trends? Trends in atomic size, ionization energy, ionic size, and electronegativity can be explained by variations in atomic structure.