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The bonds are ionic or covalent.
DNA strands are held together by hydrogen bonds that form between the nitrogen bases of both strands.
The bond in water is covalent.
Covalent Bonds
There are many types of bonds and forces that bind molecules together. The two most basic types of bonds are ionic and covalent.
hydrogen bonds. The other bonds are covalent bonds.
covalent bonds
they can be held together by ionic, covalent, or metallic bonds
When atoms are bonded together with covalent bonds, the result is a molecule.
The bonds are ionic or covalent.
covalent bonds
Not covalent, hydrogen-bonds.
Hydrogen Bonds
Covalent bonds
The strands of the DNA double helix are held together by hydrogen bonds
Hydrogen bonds.
Bonds hold atoms together. There are hydrogen bonds, ionic bonds, and covalent bonds.