Physical and Chemical Properties and Changes 1. Thermal conductivity 2. Density 3. Solubility 4. Ductility 5. Physical change 6. Flammability 7. Characteristic property 8. Chemical property 9. Physical property 10. State 11. Malleability 12. Reactivity 13. Chemical change A. A change of matter from one form into another without a change in chemical properties. B. A change that occurs when one or more substances change into entirely new substances with different properties. C. A characteristic of a substance that does not involve a chemical change. D. A property of matter that describes a substance’s ability to participate in chemical reactions. E. A property that is always the same, no matter what size the sample is which makes it useful for identifying a substance. F. The ability of a substance to be pulled into a wire. G. The ability of a substance to be rolled or pounded into thin sheets. H. The ability of a substance to burn. I. The ability of a substance to dissolve another substance. J. The ability of two or more substances to combine and form one or more new substances. K. The mass per unit volume of a substance. L. The physical form in which a substance exists, such as solid, liquid, or gas. M.The rate at which a substance transfers heat. 14. In the list of properties below, which are physical properties and which are chemical properties? Characteristic property Chemical change Density Ductility Flammability Malleability Physical change Reactivity Solubility State Thermal conductivity Chemical Property Chemical Property Chemical Property Chemical Property Chemical Property Chemical Property Chemical Property Chemical Property Chemical Property Chemical Property Chemical Property 15. Explain how to tell the difference between a physical and chemical property. 16. Physical changes do not change the of the matter involved. 17. Chemical changes occur when one or more substances are changed into substances with different . 18. Which type of change is reversible? Chemical Change 19. Identify each of the following changes as a physical (P) or chemical (C) change. Justify your answer. A. B. C. D. E. F. G. H. I. Change Bread baking P/C C A chocolate bar melts in your hand Two liquids are mixed together and heated. A precipitate (solid) forms. A puddle of spilled water disappears on a sunny day Baking soda is mixed with water and determined to be insoluble A metal can rusts C A solid and liquid are mixed together, heat is released, and the temperature drops 10C. A drinking glass breaks Two substances with boiling points of 158C and 190C are mixed and the C C C C C C C Justification J. boiling point of the resulting substance is 143C. A battery powers a radio C