True/False. write " T " if the statement is true and " F " if the statement is false. 33. The atomic weight is only an average of the relative weights of an atom and its isotopes, and it may vary from the weight of a specific isotope. 34. Glucose is an example of a monosaccharide. 35. The lower the pH, the higher the hydrogen ion concentration. 36. Hydrogen bonds are comparatively strong bonds. 37. No chemical bonding occurs between the components of a mixture. 38. A dipeptide can be broken down into two amino acids by dehydration synthesis. 39. Chemical properties are determined primarily by neutrons. 40. A charged particle is generally called an ion. 41. Lipids are a poor source of energy. 42. Covalent bonds are generally less stable than ionic bonds.