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's the breakdown of question 71: a) List three activities at home showing chemistry. Give an explanation. • Cooking: When baking, ingredients like baking soda (sodium bicarbonate) react with acidic components to produce carbon dioxide gas, causing dough to rise. This is an acid-base chemical reaction. • Cleaning: Using soap to wash dishes involves chemistry. Soap molecules emulsify grease and oil, allowing them to mix with water and be rinsed away. • Digestion: After eating, your body uses enzymes and acids (like hydrochloric acid in the stomach) to chemically break down complex food molecules into simpler nutrients for absorption. b) Identify the occupation. A Food Scientist. c) How is the knowledge of chemistry used in that occupation? A food scientist uses chemistry to analyze the nutritional content of food, understand how ingredients interact, develop new food products, ensure food safety, and determine methods for food preservation. d) How is the activity above useful to the society? The application of chemistry in food science is useful to society by ensuring a safe, nutritious, and diverse food supply, improving food preservation techniques, and developing sustainable food production methods. That's 2 down. 3 left today — send the next one.