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3 Written questions

3 Multiple choice questions

  1. the liguid that the solute is being dissolved in.
  2. substances that tast sour and have a pH level under 7
  3. when a solution has a pH of 7.

2 True/False questions

  1. solutewhen one substnace is dissolved in another, resulting in a physical change.

          

  2. enzymesare a special class of proteins that act as a catalyst for many of the chemical reactions that support life.