yes because salad dressing is a suspension of vinegar that will separate into layers if left undisturbed.
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No, mixing oil and vinegar to create salad dressing is a physical change, not a chemical reaction. The components can be easily separated and do not form new substances during mixing.
You can mix substances that react with each other, such as an acid and a base, to produce a chemical reaction. The reaction will result in the formation of new substances with different properties than the original ones.
No, mixing cornstarch with water is not a chemical reaction. It is a physical change. The cornstarch particles disperse throughout the water, but no new substances are formed.
Mixing cold vinegar with baking soda will result in a smaller reaction compared to using room temperature vinegar. This is because the reaction between baking soda and vinegar is exothermic, meaning it produces heat. Warmer vinegar provides more energy for the reaction, leading to a more vigorous fizzing reaction.
No, there should be no gas formed when mixing Drano and vinegar. The main ingredient in Drano is NaOH, and vinegar is acetic acid. So, the chemical reaction would be...NaOH + CH3COOH ==> CH3COONa + H2O. Neither is a gas.
Lots of options: metallic sodim and water, for one pair. Much beloved by many chemistry teachers because of its spectacular effect, until the health and safety brigade put an end to it!