The table compares the characteristics of a substance in three different states of matter. Comparison of Characteristics Characteristic State X State Y State Z Average Speed of the Particles Low Greatest Least Particle Attraction/Forces Weak Negligible Strong Which of these best describes the state of the substance represented by State Z? It is a solid because strong attractive forces prevent particles from moving. It is a liquid because strong attractive forces prevent particles from moving. It is a liquid because weak attractive forces allow for some motion. It is a gas because weak attractive forces allow for some motion. Question 14(Multiple Choice Worth 5 points) (01.03 LC) The atoms and molecules in a gas are in constant motion. Temperature is a measure of this motion. How are these related? As temperature increases, the molecules and atoms move faster. As temperature decreases, the molecules and atoms move farther apart. As temperature increases, the atoms and molecules move closer together. As temperature decreases, the molecules and atoms move faster. Question 15(Multiple Choice Worth 5 points) (01.01 LC) Which of these statements best explains why chemistry is flexible? It is biased. It cannot be verified. It adds new evidence. It cannot be reproduced. Question 16(Multiple Choice Worth 5 points) (01.02 LC) Which of the following is a unit of mass in the metric system? Gram Ounce Pound Ton Question 17 (Essay Worth 10 points) (01.05 MC) Compare the type of change that occurs when a substance melts and when a substance is set on fire. Use complete sentences to justify the type of change that occurs. The type of change that occurs when a substance melts and when a substance is set on fire because when the iron of the rusts that is the chemical change that is known as the oxygenation and when the substances freezes it is a physical change because when its change the state of the matter. Question 18 (Essay Worth 10 points) (01.07 HC) A glow stick contains a glass vial with chemicals. When the glow stick is bent, the vial breaks and the chemicals react to produce a glow. A science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. What conclusion can be drawn based on the observation? Be sure to note the outcome and test variables in the conclusion.