a. Write the balanced chemical equation for the diagram above b. If you have 0.031 moles of magnesium, how many moles of oxygen gas are required for a complete reaction? Show your work to receive any partial credit. c. If you have 0.750 grams of magnesium metal, how many grams of oxygen gas are required to completely react all the magnesium metal. Show your work to receive any partial credit.

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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**Diagram Explanation:**

The image illustrates a chemical reaction involving magnesium (Mg) and oxygen (O₂). There are three circles:

1. **Top Left Circle:** Contains various grey circles representing magnesium atoms.
2. **Bottom Left Circle:** Contains pairs of red circles representing oxygen molecules (O₂).
3. **Right Circle:** Shows a combination of grey and red circles, indicating the formation of magnesium oxide (MgO). Each compound consists of a grey circle and a red circle together.

**Key for Atoms:**
- Grey Circle: Mg (Magnesium)
- Red Circle: O (Oxygen)

**Text:**

7. Write the balanced chemical equation for the following reaction in the diagram. The number of molecules in the circles do not indicate the coefficients you should use in balancing the equation.

   a. Write the balanced chemical equation for the diagram above.
   
   b. If you have 0.031 moles of magnesium, how many moles of oxygen gas are required for a complete reaction? Show your work to receive any partial credit.
   
   c. If you have 0.750 grams of magnesium metal, how many grams of oxygen gas are required to completely react all the magnesium metal. Show your work to receive any partial credit.

8. Explain why an ice pack is an endothermic reaction. Give at least two reasons. If you look up information, please make sure to cite it.
Transcribed Image Text:**Diagram Explanation:** The image illustrates a chemical reaction involving magnesium (Mg) and oxygen (O₂). There are three circles: 1. **Top Left Circle:** Contains various grey circles representing magnesium atoms. 2. **Bottom Left Circle:** Contains pairs of red circles representing oxygen molecules (O₂). 3. **Right Circle:** Shows a combination of grey and red circles, indicating the formation of magnesium oxide (MgO). Each compound consists of a grey circle and a red circle together. **Key for Atoms:** - Grey Circle: Mg (Magnesium) - Red Circle: O (Oxygen) **Text:** 7. Write the balanced chemical equation for the following reaction in the diagram. The number of molecules in the circles do not indicate the coefficients you should use in balancing the equation. a. Write the balanced chemical equation for the diagram above. b. If you have 0.031 moles of magnesium, how many moles of oxygen gas are required for a complete reaction? Show your work to receive any partial credit. c. If you have 0.750 grams of magnesium metal, how many grams of oxygen gas are required to completely react all the magnesium metal. Show your work to receive any partial credit. 8. Explain why an ice pack is an endothermic reaction. Give at least two reasons. If you look up information, please make sure to cite it.
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