General Chemistry

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