Basic Chemistry

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Across
  1. 5. All matter is composed of? page 25
  2. 7. Which type of mixture has tiny particles? page 29
  3. 14. Substances that increase the rate of chemical reaction without themselves becoming chemically changed? page 38
  4. 15. When bonds are broken in larger molecules, resulting in smaller, less complex molecules is which type of chemical reaction? page 36
  5. 16. What energy is the results form from the movement of charged particle? page 24
  6. 17. What is the other name for exchange reaction? page 36
  7. 19. Two or more atoms held together by chemical bond is called? page 28
  8. 21. What energy is energy in action? page 24
  9. 22. Both protons and neutrons have the same? page 25
  10. 24. What bear a positive electrical charge? page 25
  11. 28. What energy travels in waves? page 24
  12. 30. Part of calcium phosphate salt in bones and teeth. Also present in nucleic acids and part of ATP. page 26
  13. 33. Which element is a component of proteins and nucleic acids (genetic material)? page 26
  14. 35. Salt and water is an example of which type of mixture? page 29
  15. 36. What kind of bonds form between water molecules? page 35
  16. 37. We designate each element by one or two letter chemical shorthand called? page 25
  17. 39. Present in bone. Also an important cofactor in a number of metabolic reactions, what am i? page 26
  18. 40. the more modern model of atomic structure is called? page 26
  19. 41. When four hydrogen atoms combine with one carbon atom to form what compound? page 28
  20. 45. Substances composed of two or more components physically intermixed is called? page 29
  21. 47. What type of mixture often appear translucent or milky? page 29
  22. 48. Which element has the atomic symbol Ca? page 25
Down
  1. 1. An atom has a central ___ containing protons and neutrons tightly bound together. page 25
  2. 2. Which model of the atomic structure is the simplified model? page 26
  3. 3. The heavier isotopes of many elements are unstable and their atomic decompose spontaneously into more stable form. Isotopes that exhibit this behavior are called? page 28
  4. 4. What bear a negative electrical charge? page 25
  5. 6. A component of proteins, particularly muscle proteins what am i ? page 26
  6. 8. Which element has the atomic symbol O? page 25
  7. 9. Which element is a component of all organic molecules and influences the pH of body fluid? page 26
  8. 10. when two or more different kinds of atoms bind, they form molecules of a? page 28
  9. 11. An element necessary for conduction of nerve impulses and muscle contraction. page 26
  10. 12. The word atom comes from the ____ word. page 25
  11. 13. When smaller participles are bonded together to form larger, more complex molecules this reaction is? page 36
  12. 18. Which bond is form when electrons are transferred from one atom to another? page 32
  13. 20. Which element has 3 protons,4 neutrons and 3 electrons? page 27
  14. 23. An average of the relative weight of all isotopes of an element, taking into account their relative abundance in nature is? page 28
  15. 25. Each element is composed of more or less identical particles or building block called? page 25
  16. 26. What energy is stored energy? page 24
  17. 27. What energy is directly involved in moving matter? page 24
  18. 29. What have the same number of protons but differ in the number of neutrons they contain? page 27
  19. 31. It is important for water balance, conduction of nerve impulses and muscle contraction page 26
  20. 32. Which bond is form when electrons are shared? page 32
  21. 34. Which energy is stored in the bonds of chemical substance? page 24
  22. 38. Anything that occupies space and has mass. page 24
  23. 42. What is define as the capacity to do work or put matter into motion? page 24
  24. 43. it is important to understand that reach electron shell represents a different ____. page 31
  25. 44. When two hydrogen atoms combine with one oxygen atom to form what compound? page 28
  26. 46. What element is needed to make functional thyroid hormones? page 26
  27. 48. Which element has the atomic symbol C? page 25
  28. 49. What element has 26 proton and 26 electron? page 25