### Question 2For reaction (8) given as:\[ \text{MgO(s) + 2HCl(aq) → MgCl}_2\text{(aq) + H}_2\text{O(l)} \]Select how reaction (8) should be manipulated in order to solve for reaction (7):\[ \text{Mg(s) + ½ O}_2\text{(g) → MgO(s)} \]- ○ Reaction (8) should remain as written.- ○ Reaction (8) needs to be doubled.- ○ Reaction (8) needs to be halved.- ○ Reaction (8) needs to be reversed.---### Question 3For reaction (9) given as:\[ \text{Mg(s) + 2HCl(aq) → MgCl}_2\text{(aq) + H}_2\text{(g)} \]Select how reaction (9) should be manipulated in order to solve for reaction (7):\[ \text{Mg(s) + ½ O}_2\text{(g) → MgO(s)} \]- ○ Reaction (9) needs to be halved.- ○ Reaction (9) needs to be reversed.- ○ Reaction (9) needs to be doubled.- ○ Reaction (9) should remain as written.---### Question 4For reaction (10) given as:\[ \text{H}_2\text{(g) + ½ O}_2\text{(g) → H}_2\text{O(l)} \]Select how reaction (10) should be manipulated in order to solve for reaction (7):\[ \text{Mg(s) + ½ O}_2\text{(g) → MgO(s)} \]- ○ Reaction (10) needs to be reversed.- ○ Reaction (10) needs to be halved.- ○ Reaction (10) should remain as written.- ○ Reaction (10) needs to be doubled. **Question 1:**A calorimetry experiment determined that the combustion of 1.01 g of H₂(g) reacting with excess O₂(g) gave \( q_{\text{soln}} = 143 \, \text{kJ} \). Calculate \( \Delta H \) for the reaction: \[ \text{H}_2(g) + \frac{1}{2} \text{O}_2(g) \rightarrow \text{H}_2\text{O} (l) \][Input Box]

The correct options are provided in the next step:

QUESTION 2 For reaction (8) given as: MgO(s) +2HCI(aq) → MgCl2(aq) +H2O(1) select how reaction (8) should be manipulated in order to solve for reaction (7): Mg(s) + ½ O2(g) → MgO(s) Reaction (8) should remain as written. O Reaction (8) needs to be doubled. O Reaction (8) needs to be halved. Reaction (8) needs to be reversed. QUESTION 3 For reaction (9) given as: Mg(s) + 2HCI(aq) MgCl2(aq) + H2(g) select how reaction (9) should be manipulated in order to solve for reaction (7): Mg(s) + ½ O2(g) MgO(s) Reaction (9) needs to be halved. O Reaction (9) needs to be reversed. O Reaction (9) needs to be doubled. O Reaction (9) should remain as written. QUESTION 4 For reaction (10) given as: H2(g) + ½ O2(g) H20(1) select how reaction (10) should be manipulated in order to solve for reaction (7): Mg(s) + ½ O2(g) - MgO(s) Reaction (10) needs to be reversed. O Reaction (10) needs to be halved. Reaction (10) should remain as written. Reaction (10) needs to be doubled. O O O O

QUESTION 2 For reaction (8) given as: MgO(s) +2HCI(aq) → MgCl2(aq) +H2O(1) select how reaction (8) should be manipulated in order to solve for reaction (7): Mg(s) + ½ O2(g) → MgO(s) Reaction (8) should remain as written. O Reaction (8) needs to be doubled. O Reaction (8) needs to be halved. Reaction (8) needs to be reversed. QUESTION 3 For reaction (9) given as: Mg(s) + 2HCI(aq) MgCl2(aq) + H2(g) select how reaction (9) should be manipulated in order to solve for reaction (7): Mg(s) + ½ O2(g) MgO(s) Reaction (9) needs to be halved. O Reaction (9) needs to be reversed. O Reaction (9) needs to be doubled. O Reaction (9) should remain as written. QUESTION 4 For reaction (10) given as: H2(g) + ½ O2(g) H20(1) select how reaction (10) should be manipulated in order to solve for reaction (7): Mg(s) + ½ O2(g) - MgO(s) Reaction (10) needs to be reversed. O Reaction (10) needs to be halved. Reaction (10) should remain as written. Reaction (10) needs to be doubled. O O O O

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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