Chemistry - 9th Grade

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Across
  1. 7. Basic form of matter that cannot be broken down into simpler substances by chemical reactions
  2. 9. Change of solid state directly into gaseous state without going through liquid state
  3. 10. Charged species in compounds composed of metals and non metals
Down
  1. 1. Change of gaseous state directly into solid state without going into liquid state
  2. 2. Homogeneous mixture of two or more substances
  3. 3. Combining capacity of an atom of an element
  4. 4. A subatomic particle having no charge
  5. 5. Building block of all matters
  6. 6. Amount of water vapor present in the air
  7. 8. Atoms of different element elements with different atomic numbers but same mass number