What do chains of amino acids build?

Proteins

Explanation:

Chains of amino acids linked together by peptide bonds form proteins. The properties of the amino acids in the chain dictates the complex structure and function of proteins, including folding, enzymatic activity, and binding sites.

The order of amino acids in the chain is dictated by DNA via the transcription of an intermediate molecule of mRNA, which is then translated into a sequence of amino acids.

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.

i thinking chemical change