Recent content by GuMing

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    Does Iron Lose Mass When Exposed to Water and Oxygen?

    Thank you for answering my question! One more thing, if the oxide film (which is the corrosion products)stay on the surface of iron, would it slows down the corrosion process?
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    Does Iron Lose Mass When Exposed to Water and Oxygen?

    When iron corrodes in water, it loses electrons to oxygen and becomes iron ions. The oxygen retrieved the free electrons and along with water molecules formed hydroxide ions. Eventually, the iron ions and hydroxide ions react to form iron hydroxide. So based on this, would the iron loses mass...
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    Galvanic Corrosion: Anode vs. Cathode Mass Gain/Loss

    Homework Statement In Galvanic Corrosion, does the cathode gain mass, while the anode loses mass? Homework Equations The Attempt at a Solution The anode loses electrons to the cathode through the electrode. But i am not sure whether the cathode would gain mass or not. If so, when...
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    Does mandarin contain protease?

    Does mandarin contain any protease, just like the ones in pineapple and papaya that can digest gelatin?
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    Relationship between Drag Force and Wind Speed

    The drag force can be affected by the velocity of the object relative to the fluid. Does that mean the wind affects the drag force, since it changes the velocity of air particles?
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    Would different intensities affect the droptime of parachutes?

    What I mean is the wind that is not from their top and bottom, but from their left, right, front or back.
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    Would different intensities affect the droptime of parachutes?

    Would the drop time of two parachute be the same if the wind intensity they experience is different? (Assuming everything is the same). I know the fact that the wind caused them to fall sideways would not cause a difference since the vertical height is the same. Could anyone please tell me...
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    Iron Bacteria in Seawater: What We Know

    Homework Statement Does anyone know whether Iron Bacteria can be found in seawater or not? Homework Equations The Attempt at a Solution
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    Why bending iron nails causes it to corrode faster?

    Homework Statement When bending iron nails, the corrosion rate increases. Does anyone knows, why is that? Homework Equations The Attempt at a Solution
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    Difference between economy tyre and sport tyre?

    Road Tire What is road tire? How does it affect the car performance in terms of lap time?
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    Difference between economy tyre and sport tyre?

    Why does weight is the primary killer of lap time?
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    Difference between economy tyre and sport tyre?

    Car Performance Hi! Which variable a) type of tyre (soft tyre, hard tyre), b) weight of the car, will affect the car performance more in terms of speed? Explain. Thank You! :D
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    Difference between economy tyre and sport tyre?

    What is economy tyre? What is the difference between economy tyre and sport tyre?
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