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Gaseous signaling molecules

Concepts Atmosphere

Subject: 
Environmental Science
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Atmospheric thermodynamics
Greenhouse gases
Chemical elements
Gaseous signaling molecules
Refrigerants
Atmosphere
Water vapor
Climate
Carbon dioxide in Earth's atmosphere
Oxygen
Carbon dioxide
Rain

Understanding of Concepts Assessment ? The Atmosphere Name: Directions: For each of the items, provide a comprehensive summary of your understanding of the concept. Present your responses in the mode that works the best for you: paragraphs, lists, tables, concept maps, outlines, etc. You may include diagrams and illustrations if you wish. Include additional files as needed. Your responses need to be your own work. If you use photos or other graphics from the Internet, you must provide source information. A thorough response for each item will typically consist of the equivalent of several paragraphs.

AP Chemistry MIDTERM review C

Subject: 
Chemistry
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Tags: 
Chemical reactions
Gaseous signaling molecules
Refrigerants
Chemical nomenclature
Coordination chemistry
Oxidation state
redox
Hydrogen

Zn + N O 3- + H+ ?Zn2+ + N H 4+ + H 2O Which statement about this reaction is correct? The oxidation number of H changes from +1 to 0 The oxidation number of H changes from +1 to -1 The oxidation number of N changes from +5 to -3 The oxidation number of N changes from +5 to +3 The oxidation number of N changes from +6 to +4 Assign oxidation numbers to each element Zinc goes from 0 to +2 (lost 2 electrons) N goes from +5 to -3 (gained 8 electrons) C 100 0 +5 -2 -3 +1 +1 -2 2H2O2(g) + S(s) ? SO2(g) + 2H2O(g) What is the enthalpy change in the reaction? C 200 Substance ?Hf (kJ/mol) H2O2(g) -150 S(s) 0 SO2(g) -300 H2O(g) -250 -500 kJ -200 kJ 200 kJ 400 kJ 600 kJ [2(-250) + (-300) ] ? [2(-150) + 0] = -500 C 300 CH3CH2OH(g) + ___O2(g) ? ___CO2(g) + ___H2O(g)
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