Оценка:
Опубликованно: 07.07.2003.
Язык: Английский
Уровень: Средняя школа
Литературный список: Нет
Ссылки: Не использованы
  • Эссе 'The Rate Of Reaction Between marble Chips and Hydrochloric Acid. ', 1.
  • Эссе 'The Rate Of Reaction Between marble Chips and Hydrochloric Acid. ', 2.
  • Эссе 'The Rate Of Reaction Between marble Chips and Hydrochloric Acid. ', 3.
Фрагмент работы

Introduction
We are going to do an experiment to see how surface area effects the rate of reaction when added to hydrochloric acid. I will add calcium carbonate (marble chips) to hydrochloric acid.
When calcium carbonate is added to hydrochloric acid a reaction takes place. The solution fizzes and gives off the gas carbon dioxide. I will collect this gas in a gas syringe and will time how long it takes for the reaction to produce 100cm3 of carbon dioxide.
CaCO3 +2HCL Co2 +CaCl2 +H2O
CalciumHydrochloricCarbonCalciumWater
CarbonateAcidDioxideChloride
Prediction
I predict that when…

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