SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a gas forms when vinegar and baking soda are mixed
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iron changes color when heated
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gas bubbles form in boiling water
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balls of wax form when melted wax is poured into ice water
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Detailed explanation-1: -A chemical reaction between the vinegar and the baking soda produces bubbles of carbon dioxide gas.
Detailed explanation-2: -The reaction occurs once the vinegar is added to the baking soda. In this reaction, evidence of a chemical reaction is the formation of carbon dioxide gas and gas bubbles.
Detailed explanation-3: -Mixing baking soda (sodium bicarbonate) and vinegar (acetic acid) causes a chemical reaction that produces a salt (sodium acetate) and water, as well as carbon dioxide gas.
Detailed explanation-4: -When you combine the solid (baking soda) and the liquid (vinegar), the chemical reaction creates a gas called carbon dioxide. Carbon dioxide is invisible, except as the bubbles of gas you may have noticed when the vinegar and baking soda mixture began to fizz.
Detailed explanation-5: -Four possible clues to chemical change include a transfer of energy, a change in color, the production of a gas, or the formation of a precipitate.