Chemistry Crossword Puzzle

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Across
  1. 2. It is the measurement of the flow properties of a material expressed as its resistance to flow.
  2. 7. It is the pressure required to liquefy a gas at its critical temperature.
  3. 9. It is the tendency of dissimilar particles or surfaces to cling to one another.
  4. 10. It is the pressure required to liquefy a gas at its critical temperature.
  5. 11. It is the temperature at and above which vapor of the substance cannot be liquefied, no matter how much pressure is applied.
  6. 12. It is the pressure exerted by a fluid at equilibrium at a given point within the fluid, due to the force of gravity.
  7. 14. They are the forces that hold together the atoms making up a molecule or compound. They contain all types of chemical bonds.
  8. 16. (Type of Solid) It is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.
  9. 17. It is a weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.
  10. 19. It is the temperature at which the vapor pressure of a liquid equals the external pressure surrounding the liquid.
  11. 20. It is the action or property of like molecules sticking together, being mutually attractive.
Down
  1. 1. It is a type of solid that lacks definition in shape, pattern and long-range order.
  2. 3. They are the attractive forces between molecules. They are responsible for the nonideal behavior of gases.
  3. 4. It is defined as the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases (solid or liquid) at a given temperature in a closed system.
  4. 5. It is the attractive force exerted upon the surface molecules of a liquid by the molecules beneath that tends to draw the surface molecules into the bulk of the liquid and makes the liquid assume the shape having the least surface area.
  5. 6. They are solids formed when molecules are weakly bound (can der Waals force) together in a lattice pattern or array that repeats throughout the crystal.
  6. 8. It is the weakest intermolecular force. It is a temporary attractive force that results when the electrons in two adjacent atoms occupy positions that make the atoms form temporary dipoles.
  7. 13. It is the ability to form instantaneous dipoles. It is a property of matter. It determines the dynamical response of a bound system to external fields, and provides insight into a molecule's internal structure.
  8. 15. It is the temperature and pressure at which the solid, liquid, and vapor phases of a pure substance can coexist in equilibrium.
  9. 18. When the system is heated, energy is transferred into it. In response to the energy it receives, the system changes, for example by increasing its temperature. A plot of the temperature versus time is called the _____________.