QuestionMay 15, 2025

1. Explain How can you express the rate of a chemical reaction? 2. Identify List the four factors that can influ- ence the rate of a chemical reaction. 3. Describe A thin, 0.2-mol sheet of zinc is com- pletely converted to zinc oxide (ZnO) in one month. How would you express the rate of conversion of the zinc? 4. Summarize Does every collision between react- ing particles lead to products? Explain.

1. Explain How can you express the rate of a chemical reaction? 2. Identify List the four factors that can influ- ence the rate of a chemical reaction. 3. Describe A thin, 0.2-mol sheet of zinc is com- pletely converted to zinc oxide (ZnO) in one month. How would you express the rate of conversion of the zinc? 4. Summarize Does every collision between react- ing particles lead to products? Explain.
1. Explain How can you express the rate of a chemical reaction? 2. Identify List the four factors that can influ- ence the rate of a chemical reaction. 3. Describe A thin, 0.2-mol sheet of zinc is com- pletely converted to zinc oxide (ZnO) in one month. How would you express the rate of conversion of the zinc? 4. Summarize Does every collision between react- ing particles lead to products? Explain.

Solution
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Answer

1. Rate = \frac{\Delta [Reactant]}{\Delta t} or Rate = \frac{\Delta [Product]}{\Delta t} ### 2. Concentration, Temperature, Catalyst, Surface Area ### 3. Rate = \frac{0.2 \text{ mol}}{30 \text{ days}} ### 4. No, effective collisions need sufficient energy and proper orientation. Explanation 1. Express the rate of a chemical reaction The rate of a chemical reaction can be expressed as the change in concentration of a reactant or product per unit time. **Rate = \frac{\Delta [Reactant]}{\Delta t}** or **Rate = \frac{\Delta [Product]}{\Delta t}**. 2. List factors influencing reaction rate Four factors that influence the rate of a chemical reaction are: 1. Concentration of reactants 2. Temperature 3. Presence of a catalyst 4. Surface area of reactants 3. Express the rate of conversion for zinc For the conversion of 0.2 mol of zinc to zinc oxide in one month, express the rate as **Rate = \frac{0.2 \text{ mol}}{30 \text{ days}}**. 4. Collision theory explanation Not every collision between reacting particles leads to products. Effective collisions require sufficient energy and proper orientation to overcome the activation energy barrier.

Explanation

1. Express the rate of a chemical reaction<br /> The rate of a chemical reaction can be expressed as the change in concentration of a reactant or product per unit time. **Rate = \frac{\Delta [Reactant]}{\Delta t}** or **Rate = \frac{\Delta [Product]}{\Delta t}**.<br /><br />2. List factors influencing reaction rate<br /> Four factors that influence the rate of a chemical reaction are:<br />1. Concentration of reactants<br />2. Temperature<br />3. Presence of a catalyst<br />4. Surface area of reactants<br /><br />3. Express the rate of conversion for zinc<br /> For the conversion of 0.2 mol of zinc to zinc oxide in one month, express the rate as **Rate = \frac{0.2 \text{ mol}}{30 \text{ days}}**.<br /><br />4. Collision theory explanation<br /> Not every collision between reacting particles leads to products. Effective collisions require sufficient energy and proper orientation to overcome the activation energy barrier.
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