What are the bubbles on the bottom of the tea kettle are they…?

A)Bubbles of Heat?
B)Bubbles filled with air?
C)Bubbles that are an invisible form of water?
OrD) Bubbles that contain oxygen and hydrogen that seperated from the water?


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2 Responses to “What are the bubbles on the bottom of the tea kettle are they…?”

  • Gervald F:

    C. aka steam.

  • Gary H:

    It depends. If the kettle is on the stove and the water temperature at the bottom of the kettle is at the boiling point, then, yes C is correct. If the water temperature is not at the boiling point, then it could be B. Water can absorb a fair amount of air. Try filling a water bottle with water, almost full, seal the cap and shaking it up. What happens when you open the cap? If the kettle is being used as part of an electrolytic cell, it is possible that the bubbles could be dissociated water (H & O gas).

    Heat is not a physical substance so it can not occupy volume therefore the answer is not A.

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