Answer:
See images attached and explanation
Explanation:
I have drawn three possible structures of ZX2. We have to remember that the shapes of molecules could be predicted on the basis of the Valence shell electron pair repulsion theory.
The number of electrons on the valence shell of the central atom determines the shape of the molecule. We have also been told that X is not hydrogen.
If the two X atoms are arranged at a bond angle of 180 degrees, we could have either structure I or II. We will have these structures if the Z atom is sp2 hybridized.
Similarly, if the Z atom is sp3 hybridized, we may have structure III in which the molecule is bent with a bond angle less than 109 degrees. This may result from the presence of a lone pair on Z.
Note that all these structures obey the octet rule.
Answer:
+5
Explanation:
You use the rules for oxidation numbers to calculate that the oxidation number of N is +5.
Answer: The correct statement is the liquid solution might have been dangerous to touch with bare hands.
Explanation:
In the question, it is given that Ari has wiped the spilled liquid with paper towels without putting on the gloves.
While working in a lab, one must follow some safety rules:
- There are chemicals all around the lab, so it should be handled with care that is by wearing gloves.
- If by chance there is spilling on liquid on the shelf, it should be cleaned with the help of paper towels while wearing gloves.
- Any chemical must not be touched with bare hands.
Hence, the correct answer is the liquid solution might have been dangerous to touch with bare hands.
Hello,
I think the answer is D
Hope this helps
~Girlygir101~
