This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
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Here are the answers to the questions: 5. Identify the acid in the following reaction. Give a reason. NH_4^+ (aq) + OH^- (aq) NH_3 (aq) + H_2O (l) Acid: NH_4^+ Reason: In this Brønsted-Lowry acid-base reaction, NH_4^+ acts as an acid because it donates a proton* (H^+) to the hydroxide ion (OH^-) to form ammonia (NH_3) and water (H_2O). 6. State two methods that can be used to remove water hardness. Method 1: Boiling* (removes temporary hardness by precipitating calcium and magnesium carbonates). Method 2: Adding chemicals such as washing soda (Na_2CO_3) or using ion-exchange resins*. 7a) Define the term solubility. Solubility is the maximum amount of a solute that can dissolve in a given amount of solvent at a specific temperature and pressure to form a saturated solution. Last free one today — make it count tomorrow, or type /upgrade for unlimited.