1. Ch 4 Earth Chemistry Atoms 100 200 300 400 500 Bonding Equations Terms
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2. What bond results in the transfer of electrons from one atom to another?
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3. Ionic Bond
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4. The attraction between atoms that share electrons result in ____ bonds
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5. Covalent Bonds
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6. What are 2 types of chemical bonds?
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7. Ionic and Covalent
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8. Group of atoms held together by chemical forces
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9. Molecule
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10. What 2 ways can electrons form chemical bonds?
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11. Shared or transferred
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12. A ______ is a substance that cannot be broken down into simpler, stable substances
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13. Element
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14. What is the atomic number of an element?
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15. Number of protons it has
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16. What 2 things make up the mass number?
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17. Protons and neutrons
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18. What are subatomic particles that have no charge and are found in the nucleus
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19. Neutrons
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20. What 2 subatomic particles are found in the nucleus?
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21. Protons and neutrons .
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22. What is used to show the reaction when elements and compounds combine to form new compounds?
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23. Chemical Equation
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24. Atom or molecule that has gained or lost electrons
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25. An Ion
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26. What do you call the elements or molecules on the right side of the arrow in a chemical equation?
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27. Products
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28. What does the “4” mean in SO4?
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29. 4 atoms of oxygen
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30. What are used to balance chemical equations?
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31. Coefficients
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32. What type of property can be observed without changing the composition of a substance
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33. Physical property
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34. A unified atomic mass unit is the approximate mass of a _____
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35. Proton or neutron
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36. What is an atom that has a different number of neutrons than other atoms of the same element?
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37. Isotope
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38. Mixtures in which 2 or more substances are not uniformly distributed are ____ mixtures
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39. Heterogeneous
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40. Solution of 2 or more metals
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41. Alloy
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42. What properties describe reactions between substances?
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43. Chemical properties
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44. Homogeneous mixture of 2 or more substances uniformly dispersed throughout the mixture
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45. Solution
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46. Within a group or column, the different elements usually have the same number of _____
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47. Valence electrons
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48. What are the 2 most common elements in Earth’s crust?
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49. Silicon and oxygen
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50. How are elements in the periodic table table arranged?
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51. In order of atomic number
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