PS Ch. 2 "Classifying Matter"

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Across
  1. 4. The ratio of the mass of a substance to the volume of the substance (water has one of 1.0 g/cubic centimeter).
  2. 8. A change that occurs when one or more substances change into entirely new substances with different properties.
  3. 9. Another word for a homogeneous mixture."
  4. 10. baking bread, burning paper, mixing vinegar and baking soda, rust forming on iron, Acid on limestone produces oxygen gas, are all examples of
  5. 11. Anything that has mass and takes up space (has volume).
  6. 14. The capacity of a substance to combine chemically with another substance.
  7. 16. Calculated by dividing the mass by the density.
  8. 18. A single group of atoms that are chemically combined and retain all of the properties of many units of that substance; a single unit of an element or compound.
  9. 19. The smallest unit of an element that maintains the chemical properties of that element; individual units of an element.
  10. 21. point The temperature and pressure at which a liquid becomes a gas.
Down
  1. 1. A type of energy that is not matter because it does not have any mass or volume.
  2. 2. Getting a haircut, melting ice, breaking a piece of glass into smaller pieces, freezing water, are all examples of physical _________________.
  3. 3. A mixture that is not uniform in composition; components are not evenly distributed throughout the mixture
  4. 5. Flammability, reactivity, corrosion, and toxicity are all examples of......
  5. 6. A mixture in which substances are evenly distributed throughout the mixture.
  6. 7. color, density, melting and boiling points, mass, volume, etc. are all examples of ___________ properties.
  7. 12. substance A sample of matter, either a single element or a single compound that has definite chemical and physical properties.
  8. 13. A combination of 2 or more substances that are not chemically combined and can be separated by physical means.
  9. 15. A pure substance made up of atoms of 2 or more different elements joined by chemical bonds.
  10. 17. A pure substance that cannot be separated or broken down into simpler substance by chemical means; all are organized onto the periodic table.
  11. 18. point The temperature and pressure at which a solid becomes a liquid.
  12. 20. Calculated by multiplying the density x volume.