When two substances are combined in a test tube, there may or may not be a chemical reaction....
Question:
When two substances are combined in a test tube, there may or may not be a chemical reaction. Give three pieces of evidence that would indicate the presence of a chemical reaction.
Evidence of a Chemical Change:
Materials can undergo physical or chemical change. If a chemical change takes place, the chemical identity and compposition of the matter changes. When two substances are combined in a test tube the change still can either be physical or chemical. There are simple observational pieces of evidence to indicate if a chemical reaction has occurred.
Answer and Explanation: 1
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View this answerSome observations that can be considered as the evidence of a chemical reaction in a test tube when two substances are combined are as follows:
- Gas...
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Chemical Change: Signs & Evidence
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Chapter 10 / Lesson 20
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Learn what chemical changes are and see the evidence and signs of chemical changes, as well as how they can serve as indicators of a chemical reaction.
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