Determine which characteristics are chemical properties. Explain. A) IV. This property can only be determined by chemical reacting the sample of sulfur. B) I and II. These properties can only be determined by chemical reacting the sample of sulfur. C) III. These properties can be determined by physical measurements. The sulfur does not need to react, chemically, in order to measure these properties. D) III and IV. These properties can be determined by physical measurements. The sulfur does not need to react, chemically, in order to measure these properties.