13 What occurs within the beaker as the teacher mixes the vinegar and milk? A A chemical change that produces a precipitate B A physical change that creates a new substance C A physical combination that produces a solid D A corrosive reaction between two liquids 14 Before going to school, a student cuts a ripe apple into six slices and places them in a plastic bag. During lunch, the student observes that the apple slices now have brown spots. Which of the following indicates a chemical change in the apple? F Cutting the apple into six slices G Changing color of the apple H Placing the slices in a plastic bag J Removing brown spots with a knife 15 Which of the following is a pure substance? A Air B Gold C Salt D Brass

13 What occurs within the beaker as the teacher mixes the vinegar and milk? A A chemical change that produces a precipitate B A physical change that creates a new substance C A physical combination that produces a solid D A corrosive reaction between two liquids 14 Before going to school, a student cuts a ripe apple into six slices and places them in a plastic bag. During lunch, the student observes that the apple slices now have brown spots. Which of the following indicates a chemical change in the apple? F Cutting the apple into six slices G Changing color of the apple H Placing the slices in a plastic bag J Removing brown spots with a knife 15 Which of the following is a pure substance? A Air B Gold C Salt D Brass

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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