The answer should be (B) 4
To know that compare the electronegativitis of the two elements.
The electronegativity of H is 2.2
The electronegativity of Br is 2.96
The difference does not seem enough to cause ionic bond. Then it is most likely thaty they form a polar covalent bond.
Answer:
A. higher, lower
Explanation:
- Stronger intermolecular bonds require more energy and therefore create higher boiling points.
- Stonger intermolecular bonds create stronger interactions,which causes the vapor pressure to lower.
- Hope that helped! Please let me know if you need further explanation.
Evaporating? But that’s with a boiling liquid
Considering ideal gas behavior, the volume of 1 mol of gas at STP is 22.4 L; then the volume occupied by 1.9 moles is 1.9mol*22.4L/mol = 42. 6 L.
Answer: 43 L
