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?

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