Respuesta :
Answer:
HBr- polar covalent
Cl2 - nonpolar covalent
H2O - polar covalent
Explanation:
Covalent bonds are chemical bonds that holds atoms of elements in such a way that electrons are shared between the atoms. However, based on the electronegativity differences between elements, compounds can either be polar covalent or nonpolar covalent.
Polar covalent bonds are formed when electrons are unevenly shared between two atoms based on difference in their electronegativities i.e. the more electronegative atom pulls more of the electrons. For example, in the case of HBr and H2O, Bromine and Oxygen atoms are more electronegative, hence, they pull more electrons making the electron sharing unequal, hence, a POLAR COVALENT BOND forms.
Non polar covalent bonds, contrarily, occurs when electrons are shared equally or evenly. This is so because the atoms of the elements involved have the same electronegativity. For example, Cl2 contains two atoms of Chlorine (Cl), which has the same electronegativity, hence, electrons between the two atoms are shared equally to form a NONPOLAR COVALENT BOND
HBr is polar covalent, Cl₂ - nonpolar covalent and H₂O is polar covalent in nature.
What is a polar covalent bond?
When atoms with differing electronegativities share electrons in a covalent link, the result is a polar covalent bond.
Consider the molecule of hydrogen chloride (HCl). In order to generate an inert gas electron configuration, each atom in HCl requires one extra electron.
Covalent bonds are chemical bonds that keep atoms of different elements together while sharing electrons.
Compounds can be polar covalent or nonpolar covalent depending on the electronegativity variations between components.
When electrons are unevenly divided between two atoms due to differences in their electronegativities, polar covalent connections are created.
The more electronegative atom draws more electrons. In the case of HBr and H2O, for example, the Bromine and Oxygen atoms are more electronegative,
Therefore they draw more electrons, causing the electron sharing to be uneven, resulting in the formation of a polar covalent bond.
Hence HBr is polar covalent, Cl₂ - nonpolar covalent and H₂O is polar covalent in nature.
To learn more about the polar covalent bond refer to the link;
https://brainly.com/question/10777799
