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pottersheep Group Title

Rates of Chemical reaction help please, Grade 12.

  • 2 years ago
  • 2 years ago

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  1. pottersheep Group Title
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    People who have submerged in very cold water, and presumed drowned,have sometimes been revived. By contrast, people who have submergedfor a period of time in wamer water have no survived. Suggestreasons for this difference.

    • 2 years ago
  2. Carl_Pham Group Title
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    What you need to know is, first, that life depends on chemical reactions within the body, and that death can result if an essential reactant for some reactions -- such as oxygen -- is used up and no more supplied. Second, you need to know how the speed of chemical reactions is related to temperature. Since chemical reactions happen when molecules collide with each other, and the speed of molecules is directly proportional to temperature (higher temperature = faster molecules), what do you think?

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