A candel is placed on a dish filled with baking soda. the dish then placed at the bottom of a large bowl and some vinegar is poured into the dish. a) what will be observed?
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The flame of that candle will be disappeared quickly.
Because, when the baking soda and vinegar reacts with each other a large amount of carbon dioxide gas is generated.
Now we all know that carbon dioxide is preventing substance of fire.
That's why the candle inside of that bowl will be blown out by the emitted carbon dioxide which is generated from that chemical reaction between baking soda and vinegar.
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