14 water in a lake freezing us an example of a chemical change

is my answer correct?

The freezing water in a lake is an example of physical change, your answer is wrong.

Because it can be converted back to water by heating it (physical process)

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.

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.