Graded Assignment Name: Click or tap here to enter text. Graded Assignment Mid-Unit Test, Part 2 Science | Unit: Reaction Rates and Equilibrium | Lesson: Mid-Unit Test Date: Click or tap here to enter text. Answer the questions below. When you have finished, submit this assignment to your teacher by the due date for full credit. (8 points) 1. Use the diagram below to answer the following questions. Score activated complex Click or tap here enter text. ● Explain what this graph shows. Energy (a) reactants Reaction pathway • What is represented by the arrow labeled (a). • Is this reaction exothermic or endothermic? Explain how you know. Answer: Click or tap here to enter text. products (8 points) 2. The diagram below shows steps in a chemical reaction. Use the key below to determine the identity of the atoms. Score Color of sphere Identity of atom Red Oxygen White Hydrogen Blue Black Chlorine Carbon O Stride, Inc. All rights reserved. No reproduction without written consent of Stride, Inc. Click or tap here to enter text. Page 1 of 4 Graded Assignment A B Science | Unit: Reaction Rates and Equilibrium | Lesson: Mid-Unit Test C • • • Place the figures (A, B and C) in the correct order and describe what is happening at each step in detail. Write a balanced chemical equation to represent this reaction. Describe three ways that we can decrease the rate of reaction. Answer: (8 points) 3. Use the graph below to answer the questions below. reaction • • Answer: Rate of reaction Score with enzyme Click or tap here enter text. reaction without enzyme Concentration of substrate Discuss the information conveyed by the graph in terms of reaction rate. Using the information learned in your lessons, how does a catalyst work? O Stride, Inc. All rights reserved. No reproduction without written consent of Stride, Inc. Page 2 of 4 Graded Assignment (8 points) Science | Unit: Reaction Rates and Equilibrium | Lesson: Mid-Unit Test 4. Study the following graph and refer to it when answering the questions below: 100- Score Answer: Percent of reaction completed Time ||| 10°C 20°C 30°C a. Interpret the graph - what information does it convey? b. What does the slope of each line represent? Click or tap here to enter text. 5. Study the figure below and explain what information it conveys in your own words. Include a discussion of how the change in temperature affects the reactions rate. Use what you know about the energy of activation and collisions theory in your explanation of the graph. Answer: Number of particles T T+t Energy activation energy O Stride, Inc. All rights reserved. No reproduction without written consent of Stride, Inc. Page 3 of 4 Graded Assignment Science | Unit: Reaction Rates and Equilibrium | Lesson: Mid-Unit Test O Stride, Inc. All rights reserved. No reproduction without written consent of Stride, Inc. Click or tap here to enter text. Your Score of 40 Page 4 of 4