What two or more body systems are used in these activities and how are they involved? a. playing a video game. b. getting energy to sit through class by eating cereal and a banana. c. going through puberty. d. touching a hot pan and yanking your hand away. e. jumping up and down. f. drinking water on a hot day. g. sneezing. h. blushing. i. hitting your head on the top of the car as you get into it. j. breathing harder during a jog.

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.