FOOD CHEMISTRY
BASIC PRINCIPLES OF CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Combining baking soda and vinegar.
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Combining salt and water.
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Sweetening iced tea.
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mixing a salad.
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Detailed explanation-1: -The classic baking soda and vinegar reaction provides evidence of a chemical change due to the formation of a gas and a temperature change. Students tactually experience the formation of a gas as carbon dioxide fills up the balloon and sense a change of temperature.
Detailed explanation-2: -In the reaction between vinegar and baking soda, the reactants are vinegar (acetic acid) and baking soda (sodium bicarbonate). The products are sodium acetate, water, and carbon dioxide gas.
Detailed explanation-3: -Baking soda, or sodium bicarbonate (NaHCO3), is a chemical that can undergo a decomposition reaction when heated. At temperatures above 176 degrees Fahrenheit (80 degrees Celsius), sodium bicarbonate starts to break down into three compounds, forming sodium carbonate (Na2CO3), water (H2O) and carbon dioxide (CO2).