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Which has a higher reaction rate, zinc reacting with sulfuric acid or cement setting? watch

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    chemistry gcse question.
    Also, 1. When gunpowder burns, is the reaction high or low?

    (Original post by _aishahxo_)
    chemistry gcse question.
    Also, 1. When gunpowder burns, is the reaction high or low?
    I'm very surprised these questions are part of GCSE.

    But the reaction between zinc and sulphuric acid is a very fast reaction - it is also an exothermic reaction. However, it does depend on the amount of zinc or the volume of sulphuric acid for that matter, or the volume of cement and the conditions in which the cement is used, and the volume of water used in order for crystallisation to take place.

    As for the gunpowder burning, it isn't quite clear what you mean by the reaction being high or low but I'm assuming you mean the rate of reaction, so in answer to that gunpowder is classified as being a low explosive, because it has a relatively slow decomposition rate, surprisingly, but its burning rate increases with pressure.

    Hope that helps

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