Chemistry Crossword Chapter 1

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Across
  1. 2. a state of matter characterized by particles which are close together, held in a fairly rigid positions about which they vibrate; a solid has definite volume and shape
  2. 5. the temperature at which a liquid is changed into a gas; the vapor pressure of a liquid and gas are equal at this temperature
  3. 6. the mass per unit volume of a substance
  4. 7. two or more elements or compounds that are physically mixed but not chemically combined
  5. 9. a group of two or more atoms that are linked together by chemical bonds; the smallest particle that characterizes a compound.
  6. 10. the branch of science that deals with the study of the composition, structure, and properties of matter and the changes that matter undergoes
  7. 11. the smallest particle of an element that retains the characteristics of the element
  8. 12. a reaction in which the products have a lower heat energy content than the reactants
  9. 14. a grouping of elemental symbols which tells not only what types of atoms compose the compound but also the number of each type of atom in one molecule of the compound
  10. 15. a class of matter that is homogeneous, of definite composition, and has its own unique properties which make it different from every other substance, it may either be an element or a compound.
  11. 18. the reproducibility or repeatability of a measurement
  12. 19. the energy possessed by matter due to its motion
Down
  1. 1. a substance which can be broken down by chemical means into simpler substances
  2. 3. a reaction in which the products have a higher heat energy content than the reactants
  3. 4. the materials that compose the physical universe, anything that has mass and occupies space
  4. 8. the temperature at which a solid changes into a liquid; the vapor pressures of solid and liquid are equal at this temperature
  5. 11. how close a measurement is to the actual value
  6. 13. the measure of the quantity of matter in an object
  7. 16. a substance which cannot be broken down into simpler substances by ordinary chemical means
  8. 17. a measure of the force of gravity upon an object
  9. 18. a fourth state of matter in which matter is partially broken down into electrons and ions
  10. 20. a quantity described as the randomness of a substance or system