General Chemistry

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Across
  1. 6. It is a simple technique for separating dry mixtures.
  2. 7. _____ notation is used in counting the number of significant figures.
  3. 8. It refers to how the values agree closely with one another.
  4. 11. It is generally used by farmers to separate grains from stalks after harvesting.
  5. 14. This physical property is also called as intrinsic property that does not depend on the size or amount of the sample.
  6. 15. ____ figures are the digits in any measurement that are known with certainty, plus one digit which is uncertain.
  7. 16. This type of change occurs when a substance is converted into a new substance.
  8. 20. It is the process of determining the extent of the dimensions, quantity, or extent of something.
  9. 22. These are composed of two or more substances combined physically in variable proportions.
  10. 23. ____s between nonzero digits are significant.
  11. 25. It is the smallest particle of an element.
  12. 28. It is a mixture that is also called as solution since it is relatively uniform in composition.
  13. 30. A type of chemical property: whether it will break into charged particles when in solution with water or not.
  14. 32. It is used to quantify the time with the “s” symbol.
  15. 35. It is a process of separating the components of a suspension. An example of a mixture that can be separated through this is sand and water solution.
  16. 36. It is the state of matter when particles are very close to each other.
  17. 38. It tells how close a measured value is to the “true” value.
  18. 40. It is used to quantify the length with the “m” symbol.
  19. 41. _____ chemistry is a branch of chemistry that studies the structure, properties and reactions of organic compounds, which contain carbon in covalent bonding.
  20. 43. It is denoted by the symbol “m” in International System of Units in the thousandth numerical value.
  21. 44. It is used to quantify the temperature with the “K” symbol.
  22. 46. It is the study of matter, its properties, how and why substances combine or separate to form other substances, and how substances interact with energy.
  23. 47. It is used to quantify the mass with the “kg” symbol.
  24. 48. A type of chemical property: whether the substance can be easily decomposed or not.
  25. 49. _____ chemistry is the study of macroscopic, and particulate phenomena in chemical systems in terms of the principles and concepts of physics such as motion, energy, force, and time.
Down
  1. 1. It is the process of converting liquid to gas.
  2. 2. In addition and ______, the answer must have the same number of decimal places as the measured number with the least number of decimal places.
  3. 3. Extensive physical property is also called as _____ property.
  4. 4. It exhibits the Tyndall Effect. It consist of dispersed phase or the substance that is dissolved or scattered.
  5. 5. It is the process of separating elemental metals from other particles in a mixture.
  6. 8. This type of change occurs when the internal make-up of the matter stays the same even after the change.
  7. 9. It is denoted by the symbol “c” in the SI that is in the hundredth numerical value.
  8. 10. It is denoted by the symbol “d” in the SI that is in the tenth numerical value.
  9. 12. It occurs when solid turns into gas by the addition of heat.
  10. 13. It is denoted by the symbol “G” in the SI that is in the billionth numerical value.
  11. 17. It is a mixture whose composition varies from one position to another within the sample.
  12. 18. It is anything that has mass and occupies space.
  13. 19. It is the state of matter when particles are neither too close nor too far from each other.
  14. 21. It is denoted by the symbol “M” in the SI that is in the millionth numerical value.
  15. 24. It is used to quantify the electric current with the “A” symbol.
  16. 26. In _____ and division, the answer must have the same number of significant figures as the measured number with the lowest number of significant figures.
  17. 27. A type of chemical property: whether the substance can damage an organism or not.
  18. 29. It is the state of matter when particles are far apart from each other.
  19. 31. It is denoted by the symbol “T” in the SI that is in the trillionth numerical value
  20. 33. It is denoted by the symbol “p” in the SI that is in the trillionth numerical value.
  21. 34. A type of chemical property: whether the substance undergoes combustion or not.
  22. 37. It occurs when gas turns into solid.
  23. 39. A type of chemical property: whether it reacts with acids, bases, and oxygen, gas, or not.
  24. 42. Hand ____ is the simplest method in separating mixtures.
  25. 45. It is the simplest form of matter since it is composed of only one kind of atom.