Chemistry Ch. 2 "Matter"

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Across
  1. 1. Change that does not affect the composition of a substance.
  2. 7. A method for separating the components of a liquid mixture that depends on the different boiling points of the substances.
  3. 8. A form of matter that has no definite shape or volume at room temperature.
  4. 12. A single unit of an element or compound; two or more atoms chemically bonded together.
  5. 14. Characteristic that describes the ability of a substance to change to a different substance (flammability, reactivity,toxicity,oxidation state, etc.)
  6. 15. Anything that has mass and takes up space(volume).
  7. 16. A mixture of elements that has metallic properties.
  8. 17. A mixture that is the same throughout; uniform.
  9. 18. A form of matter that has a definite shape and volume at room temperature.
Down
  1. 2. A mixture that has different properties in different regions of the mixture; non-uniform.
  2. 3. A characteristic of a substance that can change without the substance becoming a different substance (density, boiling, melting, freezing, etc.)
  3. 4. A single kind of matter that is pure and has a specific set of properties; a single element or compound.
  4. 5. Change in which a substance becomes a different substance.
  5. 6. A molecule composed of one kind of atom; cannot be broken into simpler units by chemical reactions.
  6. 9. The basic unit of matter; a single unit of any element.
  7. 10. A method for separating the components of a mixture that contains a solid and liquid.
  8. 11. A substance with variable composition because it consists of 2 or more elements and/or compounds that do not chemically react with one another.
  9. 13. A substance formed by the chemical combination of two or more elements in definite proportions.
  10. 18. A homogeneous mixture.
  11. 19. A form of matter that has no definite shape but definite volume at room temperature.