What do the Roman numerals in a cation's name indicate?
2 answers:
Answer: Option (c) is the correct answer.
Explanation:
When an element gain electrons then it acquires a negative charge. For example,
Whereas when an element loses electrons then it acquires a positive charge.
For example,
The atom can also be written using roman numerals as Fe(II).
Therefore, we can conclude that roman numerals in a cation's name indicate the positive charge on the cation.
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Answer:
a) No molecules of hydrogen
b) four molecules of ammonia
c) four left molecules of nitrogen.
Explanation:
The balanced reaction between nitrogen and hydrogen molecules to give ammonia molecules is:
Thus one molecule of nitrogen will react with three molecules of hydrogen to give two molecules of ammonia.
We have six molecules of each nitrogen and hydrogen in the closed container and they undergo complete reaction it means the limiting reagent is hydrogen. For six molecules of nitrogen, eighteen molecules of hydrogen will be required.
So six molecules of hydrogen will react with two molecules of nitrogen to give four molecules of ammonia.
The product mixture will have
a) No molecules of hydrogen
b) four molecules of ammonia
c) four left molecules of nitrogen.