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Posted by on Sunday, August 22, 2010 at 4:18am.

why did the balance record a decrease in mass during the reaction betwwn iron sulphide and hydrochloric acid?

  • science - , Sunday, August 22, 2010 at 8:32am

    Did you smell anything? If so, a gas was given off, and the balance wont record that as a mass.

    Phew. A smelly reaction.

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