Carbon Nitrogen Oxygen Fluoride 39 Which elements have the weakest

Carbon nitrogen oxygen fluoride 39 which elements

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Carbon, Nitrogen, Oxygen, Fluoride 39. Which elements have the weakest electronegativity? the elements on the bottom left of the periodic table 40. Give an example of molecular structure. (C2H6) Methane 41. Give an example of structural formula. ... 42. What are some atoms that have different electronegativity don't share
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& 24/7 customer care* characteristics of a polar bond? electrons equally moves in a certain direction (the unequal sharing of electrons) 43. What is the shape of a tetrahedron? Pyramid 44. What allows a molecule to be called a mimic? ... 45. Define oxidation. the removal of electrons from an atom or molecule. 46. Define reduction. the addition of electrons to an atom or molecule. 47. Is the formation of an ion of chlorine, ( Cl- ), considered an reduction
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11/7/2019 Biology lecture 1 test Review Flashcards | Quizlet 11/20 example of oxidation or reduction? 48. What is an acid? A hydrogen ion donor; releases H+ when dissolved in water; react with bases to form salts, sour taste. Turn litmus red. 49. What is a base? A hydrogen ion acceptor; also releases OH-, react with an acid to form a salt, bitter taste. Litmus blue. 50. What is a salt? A precipitate that results from the mixing of an acid and a base. 51. What is a buffer? A substance that minimizes changes in H+ and OH- concentrations 52. What is a mole of a substance? 6.02 X 10^23 53. One mole of C2H6O is 6.02 X 10^23
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___________________. 54. A one molar solution of C2H6O is: __________ grams of C2H6O in _____ liter(s) of water. 46 , 1 55. What is the atomic number of an atom? the # of protons in the nucleus of an atom. 56. What is the atomic mass of an atom? the # of protons and neutrons in the nucleus of an atom. 57. What is a neutral atoms? has the same number of protons and electrons 58. What are ions? are formed when an atom either gains or looses electrons
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11/7/2019 Biology lecture 1 test Review Flashcards | Quizlet 13/20 59. Give an example of an anion. _________ a negative ion Cl- 60. Give an example of a cation. __________ A positive ion Na+ 61. What is an isotope? Different versions of an atom/element same protons but different number of neutrons (Atoms of an element that have more neutrons than other atoms of that element.) 62. What is a solution? a homogeneous mixture composed of two or more substances 63. What is a molecule? two or more atoms bonded together 64. What is a compound? a molecule that has 2 or more DIFFERENT elements (all compounds are molecules but not all molecules are compounds) 65. What is an atom? the smallest unit of matter that has properties of an element
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11/7/2019 Biology lecture 1 test Review Flashcards | Quizlet 14/20 66. What are the 3 parts of an atom? protons, neutrons, electrons 67. _______________ have a positive charge and are found _______________________________________ protons , Nucleus 68. _______________ have a neutral charge and are found ________________________________________ Neutrons, Nucleus 69. _______________ have a negative charge and are found _______________________________________ Electrons, Outer shells 70. What is an ionic bond? bonding that results from one atom loosing electrons and another atom gaining electrons.
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