Exp 15 combined 2020

Chapter 5. The Nervous System-Neurolo... https://learn-us-cast-1-prod-fleet01-xyth... ALEKS Sabina Lamgadhey - Learn ALEKS Sabina Lamgad O CHEMICAL REACTIONS Solving for a reactant using a chemical equation Sabina Green plants use light from the Sun to drive photosynthesis. Photosynthesis is a chemical reaction in which water (H,0) and carbon dioxide (CO,) chemically react to form the simple sugar glucose (C,H1206) and oxygen gas (0,). What mass of simple sugar glucose is produced by the reaction of 8.45 g of water? Be sure your answer has the correct number of significant digits. x10 EE Check Explanation Privacy 2020 McGraw-Hill Education. All Rights Reserved. Terms of Use 10 MacBook Air F8 F6 F5 F4 * OC %24 II

Explosions cause damage through the by-products of exothermic chemical reactions. Which is not one of those by-products? Question 15Answer   a.   Deflagration b.   Blast wave c.   Fireball d.   Hot gases

Corrected True/False: Indicate whether each statement is true or false by circling the word true or the word false. If false, correct the statement to make it true in the space provided. 10. A physical change usually involves a greater enthalpy change than does a chemical change. True / False 11. In endothermic reactions the products have more kinetic energy than the reactants. True / False 12. The process of nuclear decay is a third order reaction. True / False 13. The rate-determining step is the slowest step in a reaction mechanism. True / False

20 Balance the following equation and identify the reaction type (Spelled Correctly!): 02 Reaction type 18 21

31D 15 undo 'H → 32P+ ? 15 Express your answer as a particle. ? OA chemical reaction does not occur for this question.

Whats the purpose of Rates of Chemical Reactions: A Clock Reaction Experiment?

49 PM Mon Mar 7 - 52% Chapter 7 test corrections Test corrections Chapter 7 While strolling through the park you come across this statue of the composer Ludwig van Beethoven. It appears to be made of metal, but its surface is green in color and not very shiny. Is the statue's green color due to green paint or something else? After doing some research, you learn that the statue is made out of bronze, which is a mixture of metals. The statue was never painted. Instead, the exposed surface of the bronze underwent a chemical change, forming a green film over time. You wonder what the film is made of and how it formed. 1) Find the chemical formula of the green film. 2) Are the properties of the film different from the bronze beneath it? Give two examples. 3) Calculate the difference in the electronegativities between the atoms in the green film 4) Do you think this film dissolves in water? What evidence do you have? 5) Is the green film an ionic compound, a covalent compound, or a metal…

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The activation energy =   The energy of the reactants =    The energy of the products =    The energy given off or absorbed =    Is this reaction an endothermic or exothermic reaction

Can you please help me with this?

Chemistry 2. The following experimental data are obtained for the decomposition of nitrogen dioxide:   2 NO2(g) → 2 NO(g) + O2(g) ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯ Time, s [NO2], M ln[NO2], [NO2]-1, M-1 ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯ 0 10.0 x 10-3 -4.605 1.00 x 102    60 6.83 x 10-3 -4.986 1.46 x 102 120 5.18 x 10-3 -5.263 1.93 x 102 180 4.18 x 10-3 -5.477 2.39 x 102 240 3.50 x 10-3 -5.655 2.86 x 102 300 3.01 x 10-3 -5.806 3.32 x 102 ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯ Plot a graph of ln[NO2] versus t and 1/[NO2] versus t. Determine the decomposition of NO2 follows a first order or second order rate law with respect to [NO2].

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