Elements and Compounds

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Across
  1. 1. minerals rich in metals such as copper and iron; the pure metal can be extracted from the ore
  2. 6. a simple chemical equation where chemicals are represented by their names
  3. 9. evaporation of solvent from a solution to leave solute behind as crystals
  4. 10. Describes elements that consists of a single atom
  5. 12. The smallest building blocks of matter
  6. 14. a substance that dissolves another substance
  7. 15. any chemical reaction where a substance burns in oxygen to produce light and heat Corrosion: when a metal reacts
  8. 18. a simplified representation of solids, liquids and gases
  9. 20. a mixture in which one substance is dissolved in another
  10. 21. Shiny
  11. 22. an increase in size
Down
  1. 2. A substance being dissolved
  2. 3. describes a substance that can chemically dissolve other substances
  3. 4. the chemical reaction in plants that converts carbon dioxide and water into oxygen and glucose using energy from the Sun
  4. 5. The characteristics of a substance
  5. 7. an electrical switch used in computers to process data quickly
  6. 8. a process where two liquids or two gases mix due to the motion of their particles
  7. 11. the substance found in plant leaves that make leaves green and collects energy from the Sun for photosynthesis
  8. 13. the first chemical explosive; made up of a mixture of saltpeter, sulfur and carbon
  9. 15. a change of state where a gas is cooled and forms a liquid
  10. 16. an alloy of copper and tin that is much harder than pure copper
  11. 17. a change of state
  12. 19. any combination of two or more elements and compounds