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2. Balance the following redox reaction: KBRO3 (aq) + N2H4 (aq) → N2 (g) + KBr (aq) + H2O (1) Further, assign oxidation numbers and identify which element is getting reduced and which element is getting oxidized. 3. A 375 mL solution was made using 0.836g of calcium chloride. What is the concentration of chloride ions in this solution? 4. How many grams of NaOH are needed to neutralize 20.00 mL of 0.150 M sulfuric acid solution?

2. Balance the following redox reaction: KBRO3 (aq) + N2H4 (aq) → N2 (g) + KBr (aq) + H2O (1) Further, assign oxidation numbers and identify which element is getting reduced and which element is getting oxidized. 3. A 375 mL solution was made using 0.836g of calcium chloride. What is the concentration of chloride ions in this solution? 4. How many grams of NaOH are needed to neutralize 20.00 mL of 0.150 M sulfuric acid solution?

Chemistry
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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Please answer question 2, 3 and 4.

1. Which of the following ions will always be a spectator ion in a precipitation reaction? Why? а. C b. NO; c. SO,2- d. S- 2. Balance the following redox reaction: KBГO3 (aq) + NНа (аq) — N- (g) + KBr (aq) + H,0 () Further, assign oxidation numbers and identify which element is getting reduced and which element is getting oxidized. 3. A 375 mL solution was made using 0.836g of calcium chloride. What is the concentration of chloride ions in this solution? 4. How many grams of NaOH are needed to neutralize 20.00 mL of 0.150 M sulfuric acid solution?
Transcribed Image Text:1. Which of the following ions will always be a spectator ion in a precipitation reaction? Why? а. C b. NO; c. SO,2- d. S- 2. Balance the following redox reaction: KBГO3 (aq) + NНа (аq) — N- (g) + KBr (aq) + H,0 () Further, assign oxidation numbers and identify which element is getting reduced and which element is getting oxidized. 3. A 375 mL solution was made using 0.836g of calcium chloride. What is the concentration of chloride ions in this solution? 4. How many grams of NaOH are needed to neutralize 20.00 mL of 0.150 M sulfuric acid solution?
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