Question

29. Duerellall u
30. What happens when dilute hydrochloric acid is added to iron filings?
31. Arrange the following elements in increasing order of their atomic radü: Li, Be, F and N.
is 16. Write its electronic configuration. Find the number​

Answer 1

Answer:

1. when dilute HCl is added to Fe then Ferrous chloride ( FeCl2) and hydrogen gas (H2) will be formed.
2. Answer. The elements arranged in increasing order: F < N < Be < Li.

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