Chemistry Vocabulary Review (Final- Part 2)

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Across
  1. 4. a symbolic representation of a molecule or compound, using element symbols and numerical subscripts to show the exact types and numbers of atoms present
  2. 9. a chemical process where two or more substances (elements or compounds) join together to form a single new product
  3. 11. the mass in grams of one mole of a substance
  4. 16. the large number placed in front of a chemical formula in a balanced equation
  5. 17. neutral substances formed when positively charged ions (cations, usually metals) and negatively charged ions (anions, usually nonmetals) are held together
  6. 20. a positively charged ion
  7. 22. measures the efficiency of a reaction by comparing the actual amount of product obtained (actual yield) to the maximum possible amount (theoretical yield)
  8. 24. substance left over after a chemical reaction stops because the other reactant is completely consumed
  9. 27. a standard unit in chemistry used to measure the amount of a substance, representing a massive, fixed quantity of particles
  10. 29. the space (volume) occupied by one mole of a substance (element or compound) at a specific temperature and pressure
  11. 30. the amount of product actually produced and collected from a chemical reaction, measured in a lab
  12. 31. the method for calculating the amounts of reactants and products in a chemical reaction using a balanced equation
  13. 32. the six chemical elements comprising Group 2 of the periodic table
  14. 34. a chemical element in the d-block of the periodic table (groups 3 to 12)
  15. 35. chemical elements located on the upper right side of the periodic table (plus hydrogen) that lack characteristic metallic properties
  16. 36. a representation of a chemical reaction where the number of atoms for each element is identical on both the reactant (left) and product (right) sides
  17. 44. a measure of an atom's size
  18. 45. a chemical reaction where one element takes the place of another element within a compound
  19. 46. the six highly reactive metallic elements in Group 1 of the periodic table
  20. 47. a simple comparison (ratio) of the coefficients of two substances in a balanced chemical equation
  21. 48. an ion consisting of exactly one atom that has gained or lost electrons, resulting in a net positive or negative charge
  22. 49. a chemical process where two ionic compounds in an aqueous solution exchange ions to form two new compounds
  23. 50. a reaction between a hydrocarbon or an element and oxygen that forms carbon dioxide and water
  24. 51. the electrons located in the outermost electron shell (valence shell) of an atom
Down
  1. 1. the lowest whole-number ratio of ions represented in an ionic compound
  2. 2. a chemical expression that shows the exact number and types of atoms present in a single molecule of a compound
  3. 3. the simplest whole-number ratio of atoms of each element present in a chemical compound
  4. 5. chemical elements found on the left side and center of the periodic table, characterized by their high electrical/thermal conductivity, luster, malleability, and ductility
  5. 6. a list of elements ordered from most to least reactive, arranged by their ability to lose electrons (oxidize) and undergo single-replacement reactions
  6. 7. the reactant in a chemical reaction that is completely consumed
  7. 8. a negatively charged ion
  8. 10. a substance formed when two or more nonmetal atoms share electrons
  9. 12. the chemical elements comprising Group 18 of the periodic table
  10. 13. the fundamental constant representing the exact number of particles in a mole
  11. 14. the minimum amount of energy required to remove the most loosely bound electron
  12. 15. a chemical link formed by the electrostatic attraction between oppositely charged ions, typically occurring when a metal transfers valence electrons to a nonmetal
  13. 18. ions present in an aqueous solution that do not participate in a chemical reaction
  14. 19. a symbolic representation of a chemical reaction
  15. 21. a reaction in which one reactant breaks down into two or more products
  16. 23. a chemical rule of thumb stating that atoms tend to gain, lose, or share electrons to achieve a stable configuration of eight valence electrons, similar to a noble gas
  17. 25. a group of two or more atoms covalently bonded together that behave as a single unit and carry an overall positive or negative charge
  18. 26. states that the physical and chemical properties of elements are periodic functions of their atomic numbers
  19. 28. six highly reactive nonmetal elements in Group 17 of the periodic table
  20. 33. an atom or molecule with a net electric charge, formed when a neutral atom gains or loses electrons
  21. 34. the maximum amount of product that can be created in a chemical reaction, assuming 100% efficiency and no loss of material
  22. 37. the smallest unit of a substance that retains its chemical properties, acting as the building block for that substance
  23. 38. a chemical element with physical and chemical properties intermediate between metals and nonmetals
  24. 39. a type of chemical bond formed when two atoms—typically nonmetals—share one or more pairs of valence electrons to achieve stability
  25. 40. a chemical substance composed of exactly two different elements combined in a fixed ratio
  26. 41. a substance that speeds up a chemical reaction without being consumed or permanently changed in the process
  27. 42. a chemical property measuring an atom's ability to attract and hold shared electrons within a covalent bond
  28. 43. a chemical substance composed of exactly two atoms—either of the same or different elements—bonded together