Although you can see the pencil, it appears broken in the glass of water. this is because a) electromagnetic waves cannot travel through solids. b) electromagnetic waves travel at different speeds through different media. c) electromagnetic waves compress more when they travel through denser media. d) electromagnetic waves get closer together when they go through dense media like glass.

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.

c. is the correct answer