Across
- 4. State in which forward and reverse reactions are balanced
- 6. Force exerted by a substance per unit area
- 8. Substance present at the start of a chemical reaction
- 11. Principle stating that mass and energy are conserved in a system
- 14. Group 1 elements in the periodic table
- 16. Formula showing the simplest ratio of elements in a compound
- 21. Process of changing directly from gas to solid
- 22. Process of changing from gas to liquid
- 23. Group 18 elements in the periodic table
- 27. Speed at which a chemical reaction occurs
- 29. Substance with a bitter taste and pH greater than 7
- 33. Basic unit of matter
- 34. Substance used to show the presence of another substance
- 35. Substance dissolved in a solvent
- 38. Measure of acidity or alkalinity
- 40. Repeating pattern in the properties of elements
- 41. Process of joining atoms together
- 42. Elements in the middle of the periodic table
- 43. Horizontal row in the periodic table
- 45. Electrically charged atom or molecule
- 46. Homogeneous mixture of two or more substances
- 49. Expression representing a chemical compound
- 52. Region of space where an electron is likely to be found
- 54. Capacity to do work or produce heat
- 57. Substance made of only one type of atom
- 59. Molecule upon which an enzyme acts
- 62. State of matter
- 63. Relating to molecules
- 65. Process of changing from solid to liquid
- 67. State of matter with no fixed shape or volume
- 69. Arrangement of atoms in a molecule
- 71. Mixing of atomic orbitals
- 72. Process of reducing the concentration of a solution
- 73. Element that lacks metallic properties
- 75. Study of reaction rates
- 76. Measure of disorder in a system
- 77. Characteristic of a substance
Down
- 1. Process of changing from liquid to gas
- 2. Neutral subatomic particle found in the nucleus
- 3. Group of atoms bonded together
- 5. Substance with distinct properties and composition
- 7. Process of changing directly from solid to gas
- 9. Chart displaying chemical elements
- 10. State of matter with a fixed volume but no fixed shape
- 12. Gaseous state of a substance
- 13. Substance capable of dissolving other substances
- 15. Spontaneous emission of radiation from an unstable nucleus
- 17. Element that is typically shiny and conducts electricity
- 18. Perfect or theoretical
- 19. Process of changing from liquid to solid
- 20. Amount of solute in a solvent
- 24. Chemical reaction absorbing heat
- 25. Substance composed of two or more elements
- 26. Relating to atoms
- 28. Element with properties of both metals and nonmetals
- 30. Type of bond formed by sharing electrons
- 31. Vertical column in the periodic table
- 32. Process that involves the transformation of substances
- 36. Positively charged subatomic particle
- 37. Study of energy changes in chemical reactions
- 39. Table organizing elements by atomic number
- 44. Measure of an atom's ability to attract electrons
- 47. Group 17 elements in the periodic table
- 48. Central part of an atom containing protons and neutrons
- 50. Force holding atoms together in a molecule
- 51. Amount of matter in an object
- 53. Force exerted on an object due to gravity
- 55. Process of changing from liquid to gas
- 56. Atoms of the same element with different numbers of neutrons
- 58. Negatively charged subatomic particle
- 60. Substance that increases the rate of a chemical reaction
- 61. Bond formed by the transfer of electrons
- 64. Energy required to initiate a chemical reaction
- 66. Substance formed as a result of a chemical reaction
- 68. Substance with a sour taste and pH less than 7
- 70. State of matter with a fixed shape and volume
- 74. Chemical reaction releasing heat