Answer:
a new substance is formed, if heat is formed, color change, the evolution of gas, and bubbles or fizzing
A weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in another
proton is the name for a nuclear particle that has about the same mass as a neutron, but with a positive charge.
Answer:
A.
Explanation:
The paper clip allows elictricity to pass, unlike the eraser or paper
Answer:
SO2
Explanation:
Dipole-Dipole exist between parmanent dipoles in a molecule. THis means that molecule must have a parmanent dipole moment in it.
Example - HCl
Hydrogen bonding is an attraction between lone pair of an electronegative element and H atom of same or different molecule. H must be covalantly attached to either F, N or O.
Example - H2O
Among the molecules given in the list only SO2 and H2O exihibits parmanent moment. As BCl3 , CBr4 and H2 are symmetric compounds.
Since, SO2 cannot exihibit H- bonding only dipole-dipole forces as its strongest intermolecular force.
