answer is :D it would be a great answer
Ok but y I thought it was upside down tho...
Answer:
Option D is the correct answer.
Explanation:
The specific gravity of copper is 8.91.
We have
We also have
1 kg = 2.205 lb
1 m = 3.28 ft
Substituting
Option D is the correct answer.
The chemical formula of a binary molecular compound of hydrogen and a group 7a element that can reasonably be expected to be less acidic in aqueous solution than HBr is HF
Group 7a that forms binary molecular compounds of Hydrogen are Halogens such as Iodine I, Bromine Br, Chlorine Cl and Fluorine F. Out of these four HF is the least acidic. This is calculated based on Acid dissociation constant. HF has the least value out of these four, so it is the least acidic.
A binary molecular compound is a compound that consists of two non metals elements only.
Therefore, the chemical formula of a binary molecular compound of hydrogen and a group 7a element that can reasonably be expected to be less acidic in aqueous solution than HBr is HF.
To know more about binary molecular compounds
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