deexix1238 deexix1238
  • 14-01-2018
  • Chemistry
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How can you tell if a chemical change has occurred?

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Oreocat Oreocat
  • 14-01-2018
You can tell if a chemical reaction has taken place when one or more of the following things happen: There has been a colour change inside the reaction flask. A gas has formed. Usually we know a gas has formed when we can see bubbles
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