Question

1. which of the following statements about chemical bonds is true? a. covalent bonds are stronger than ionic bonds. b. hydrogen bonds occur between two atoms of hydrogen. c. bonding readily occurs between nonpolar and polar molecules. d. a molecule of water is unlikely to bond with an ion. 14. the energy stored in a fool of snow on a steep roof is a. potential energy b. kinetic energy c. radiant energy d. activation energy 19. the heating of sodium, phosphorus, and other elements produces colored crystals that are found in gems. this is an example of a(n) a. oxidation b. synthesis c. decomposition d. exothermic 20. ch₄ is methane. this compound is a. inorganic b. organic c. reactive d. a crystal 21. which of the following is most likely to be evenly distributed in water in a homogeneous solution? a. sodium ions and chloride ions b. nacl molecules c. salt crystals d. red blood cells 22. jenny mixes up a batch of pancake batter, then stirs in some chocolate chips. as she is waiting for the first few pancakes to cook, she notices the chocolate chips sinking to the bottom of the clear glass mixing bowl. the chocolate - chip batter is an example of a a. solvent b. solute c. solution d. suspension 23. a substance dissolves into a liquid.

Explanation:

1. Covalent bonds are not always stronger than ionic bonds. Hydrogen bonds occur between a hydrogen - bonded to an electronegative atom and another electronegative atom, not just between two hydrogen atoms. Bonding between non - polar and polar molecules is not common as they have different intermolecular force characteristics. Water is a polar molecule and can bond with an ion through ion - dipole interactions. So, none of the options are correct.
2. The energy stored in a foot of snow on a steep roof is potential energy as it has the potential to do work when it falls.
3. Methane ($CH_4$) is an organic compound as it contains carbon - hydrogen bonds and is a hydrocarbon.
4. Sodium ions and chloride ions will be evenly distributed in water in a homogeneous solution as they dissociate and interact with water molecules through ion - dipole interactions.
5. The chocolate - chip batter is a suspension as the chocolate chips do not dissolve but are dispersed and will settle out over time.

Answer:

1. None of the above
2. a. potential energy
3. b. organic
4. a. sodium ions and chloride ions
5. d. suspension