You mix solution A with solution B in a beaker. Which of the following observation does not help you to prove that a chemical reaction has occurred
A- Yellow precipitate is formed
B- Bubbles are seen
C- None of the above, all of them are signs of chemical reactions
D- The beaker becomes warm
Answers: 1
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You mix solution A with solution B in a beaker. Which of the following observation does not help you...
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