Answer: The bond of molecule AB is then best described as a covalent bond
Explanation: The bond molecule AB is covalent because the difference in their electronegativity is not very big
I think it's 2 I tried looking it up because I was not sure.
Bromine is a chemical element with the symbol Br and atomic number 35.
The exact answer is 145000
Combustion is not a physical change instead it's a chemical change because when we burn things we cannot regain it's original form.