Chemistry, 28.06.2019 22:00 mendezmarco2004
16. representative elements are those found in the * a. s and p blocks b. d block c. s and d blocks d. d and f blocks 17. within the representative elements, atomic size generally * a. remains constant within a period b. increases as you move left to right across an energy level c. increases as you move down a group d. cannot be predicted 18. ions are charged particles formed from atoms. which of these would be true? * a. cations form when an atom gains electrons. b. cations form when an atom loses electrons. c. anions form when an atom gains protons. d. anions form when an atom loses protons.
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Chemistry, 21.06.2019 15:50
In a popular classroom demonstration, solid sodium is added to liquid water and reacts to produce hydrogen gas and aqueous sodium hydroxide. part a write a balanced chemical equation for this reaction. express your answer as a chemical equation. identify all of the phases in your answer.
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Which formula can be used to calculate the molar mass of ammonia (nh3)? molar mass of n + molar mass of h 3 × molar mass of n + molar mass of h molar mass of n + 3 × molar mass of h 3 × molar mass of n + 3 × molar mass of h
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What is the subscript for oxygen in its molecular formula
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16. representative elements are those found in the * a. s and p blocks b. d block c. s and d blocks...
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