A chemist measures the energy change AH during the following reaction: 2 HgO(s) → 2 Hg(1)+0,(9) AH=182. kJ Use the information to answer the following questions. endothermic. This reaction is. exothermic. Suppose 11.7 g of HgO react. Yes, absorbed. ? Yes, released. Will any heat be released or absorbed? No. If you said heat wil be released or absorbed in the second part of this question, calculate how much heat will be released or absorbed. Round your answer to 3 significant digits.

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### Energy Change in a Chemical Reaction

A chemist measures the energy change, \( \Delta H \), during the following reaction:

\[ 2 \text{HgO} (\text{s}) \rightarrow 2 \text{Hg} (\ell) + \text{O}_2 (\text{g}) \]
\[ \Delta H = 182 \text{ kJ} \]

Use the information to answer the following questions.

---

#### Questions and Answers

1. **This reaction is...**
   - □ endothermic.
   - □ exothermic.

2. **Suppose 11.7 g of HgO reacts.**
   
   Will any heat be released or absorbed?
   - □ Yes, absorbed.
   - □ Yes, released.
   - □ No.

#### Calculation

If you said heat will be released or absorbed in the second part of this question, calculate how much heat will be released or absorbed:
   \[ \text{_________} \ kJ \]

Round your answer to 3 significant digits.

---

##### Explanation of Elements in the Image

- **Checkboxes**: Used to select answers in a multiple-choice format.
- **Blank Space for Numerical Value**: An area provided to calculate and input the exact amount of heat released or absorbed.

This educational content challenges the student to understand whether the given reaction is endothermic or exothermic and to perform a calculation based on the given data. Here, understanding the concepts of bond energies and heat transfer in reactions is crucial.
Transcribed Image Text:### Energy Change in a Chemical Reaction A chemist measures the energy change, \( \Delta H \), during the following reaction: \[ 2 \text{HgO} (\text{s}) \rightarrow 2 \text{Hg} (\ell) + \text{O}_2 (\text{g}) \] \[ \Delta H = 182 \text{ kJ} \] Use the information to answer the following questions. --- #### Questions and Answers 1. **This reaction is...** - □ endothermic. - □ exothermic. 2. **Suppose 11.7 g of HgO reacts.** Will any heat be released or absorbed? - □ Yes, absorbed. - □ Yes, released. - □ No. #### Calculation If you said heat will be released or absorbed in the second part of this question, calculate how much heat will be released or absorbed: \[ \text{_________} \ kJ \] Round your answer to 3 significant digits. --- ##### Explanation of Elements in the Image - **Checkboxes**: Used to select answers in a multiple-choice format. - **Blank Space for Numerical Value**: An area provided to calculate and input the exact amount of heat released or absorbed. This educational content challenges the student to understand whether the given reaction is endothermic or exothermic and to perform a calculation based on the given data. Here, understanding the concepts of bond energies and heat transfer in reactions is crucial.
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