Chemistry Test Vocabulary Reveiw

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Across
  1. 4. A change in matter that creates a new substance
  2. 7. the material(s) that are on the left side of the arrow in a chemical equation
  3. 9. a trait that describes how matter can change into a different substance
  4. 10. a row on the periodic table that is organized by sequential atomic numbers
  5. 11. a number that comes in front of a chemical formula and tells how many molecules of that substance you have
  6. 13. an element on the left side of the zigzag line on the periodic table that is malleable, is ductile, is a conductor, has luster, and has a high density.
  7. 16. an element on the right side of the zigzag line on the periodic table that does not conduct electricity, is brittle, and is dull.
  8. 17. this type of material has a constant composition and has consistent properties throughout the sample. Both elements and compounds are considered to be this.
  9. 20. the ability to complete an electrical circuit
  10. 23. an indicator that turns magenta in a base and remains clear in an acid
  11. 25. a substance made of two or more elements chemically joined
  12. 27. the atomic ____ is the average sum of protons and neutrons in an atom
  13. 30. a mixture that is NOT the same throughout, like salad
  14. 31. this indicator turns blue in a base and red in an acid
  15. 34. this number tells how many of each kind of atom are in a compound
  16. 36. a trait that can be observed without changing the kind of matter
  17. 38. the temperature at which a substance will change from solid to liquid
Down
  1. 1. a change in matter that DOES NOT change what the substance is
  2. 2. a vertical column or group of elements on the periodic table that all have similar properties
  3. 3. the relative resistance of a material to denting, scratching, or bending
  4. 5. the part of an atom that contains protons and neutrons
  5. 6. the negatively charged subatomic particle
  6. 8. this type of element is found along the zig-zag line on the periodic table and has properties of both metals and nonmetals
  7. 12. The law of ____ of matter states that matter cannot be created or destroyed
  8. 14. the subatomic particle with no charge
  9. 15. a solid that forms when two non-solids react
  10. 17. the new material(s) that are formed at the end of a chemical reaction
  11. 18. a substance made of only one type of atom
  12. 19. a solution that tastes bitter, feels slippery, and has a pH greater than seven
  13. 21. the atomic ____ represents the number of protons in one atom of an element
  14. 22. the ability to be bent or hammered into different shapes
  15. 24. a mixture that is the same throughout, like salt water
  16. 26. a solution that is neither an acid nor base. It has a pH of seven.
  17. 28. a bond formed between two nonmetals where the electrons are shared
  18. 29. the relationship between the mass and volume of a material
  19. 32. a solution that tastes sour, reacts with metals, and has a pH less than seven
  20. 33. the temperature at which a substance will change from liquid to gas
  21. 35. a bond formed between a metal and a nontmetal where electrons are transferred
  22. 37. the positively charged subatomic particle