One covalent bond, as in alkoxides.
The nitrogen atom forms 3 covalent bonds.
The bond between the sodium ion (Na+) and the bicarbonate ion (HCO3-) is ionic. The negative charge on bicarbonate ion is distributed between two oxygen atoms by resonance. The rest of the bonds within the bicarbonate ion (3 carbon-oxygen bonds and 1 oxygen-hydrogen bond) are covalent.
Polar covalent. The electrons are shared unequally between the atoms of hydrogen and oxygen. They are in orbitals around oxygen more than around hydrogen. This gives water a slight positive and negative charge on the poles of the molecule. Positive slightly on the hydrogen pole and negative on the oxygen end.
Both. One side is positive while the other is negative. Taking H2O as an example, the hydrogen molecule pulls the shared electrons closer to itself, and further away from the two Oxygen molecules. This gives the Oxygen side of the H2O molecule a positive charge and the Hydrogen side a negative charge.
Nitric acid, HNO3 has covalent bonds. Two nitrogen-oxygen single bonds, one nitrogen-oxygen double bond and an oxygen-hydrogen single bond. There is a formal +1 charge on the nitrogen center, and a formal -1 charge on the single-bonded oxygen without the hydrogen atom.
Hydrogen is linked by a covalent bond to an atom of oxygen. The covalent bonds are polar, as the oxygen atoms have a slight negative charge.
Hydrogen is linked by a covalent bond to an atom of oxygen. The covalent bonds are polar, as the oxygen atoms have a slight negative charge.
Hydrogen bonds and covalent bonds are two completely different things. Covalent bonds share an electron, while hydrogen bonds (just for water molecules) act like magnets- the Oxygen atom has a slight negative charge and it "attracts" the Hydrogen atoms, which have a slight positive charge.
The bond in water is covalent.
The nitrogen atom forms 3 covalent bonds.
The bond between the sodium ion (Na+) and the bicarbonate ion (HCO3-) is ionic. The negative charge on bicarbonate ion is distributed between two oxygen atoms by resonance. The rest of the bonds within the bicarbonate ion (3 carbon-oxygen bonds and 1 oxygen-hydrogen bond) are covalent.
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Polar covalent. The electrons are shared unequally between the atoms of hydrogen and oxygen. They are in orbitals around oxygen more than around hydrogen. This gives water a slight positive and negative charge on the poles of the molecule. Positive slightly on the hydrogen pole and negative on the oxygen end.
Both. One side is positive while the other is negative. Taking H2O as an example, the hydrogen molecule pulls the shared electrons closer to itself, and further away from the two Oxygen molecules. This gives the Oxygen side of the H2O molecule a positive charge and the Hydrogen side a negative charge.
Nitric acid, HNO3 has covalent bonds. Two nitrogen-oxygen single bonds, one nitrogen-oxygen double bond and an oxygen-hydrogen single bond. There is a formal +1 charge on the nitrogen center, and a formal -1 charge on the single-bonded oxygen without the hydrogen atom.