Physical and Chemical Properties

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Across
  1. 2. a chemical change in which a substance combines with oxygen, as when iron oxidizes, forming rust
  2. 3. ability to burn in the presence of oxygen
  3. 5. the amount of matter in an object
  4. 7. A group of atoms bonded together, representing the smallest unit of a chemical compound.
  5. 11. The ability to reflect light. Glitter, Sparkle, Gloss
  6. 12. A combination of two or more substances that do not chemically combine.
  7. 15. Ability to be drawn out into a wire
  8. 16. A measure of acidity or basicity.
  9. 19. The smallest unit of an element that retains the properties of that element.
  10. 21. A number placed before a chemical formula in an equation, indicating how many molecules or moles of that substance are involved.
  11. 23. The gradual destruction of a material, often metal,
  12. 24. the resistance of a mineral to being scratched or changed in shape
  13. 27. Ability to conduct heat or electricity
  14. 29. A reaction that releases energy in the form of heat
  15. 31. can be observed when substances react (combine) with another substance; as a result it becomes a new substance
Down
  1. 1. temperature at which a substance changes from a liquid to a gas
  2. 4. Ability to be flattened or spread out into thin sheets
  3. 6. describes how easily a substance dissolves when mixed in water.
  4. 8. A reaction that ABSORBS energy in the form of heat
  5. 9. A solid that forms from a solution during a chemical reaction.
  6. 10. the starting substances in a chemical reaction.
  7. 13. chemical reaction that involves burning in oxygen to release heat and light.
  8. 14. How a surface feels; a physical characteristic.
  9. 17. A number written below and to the right of a chemical symbol in a formula, indicating the number of atoms of that element.
  10. 18. A substance that increases the rate of a chemical reaction without being consumed.
  11. 20. the new substances formed as a result of a chemical reaction.
  12. 22. A chemical reaction that causes a loss of luster on metals
  13. 25. The connection between atoms in a molecule that can change during a reaction.
  14. 26. A chemical reaction in which a compound is broken down into simpler substances.
  15. 28. temperature at which a substance changes from a solid to a liquid
  16. 30. A representation used to explain or predict scientific phenomena, such as a balanced chemical equation.