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
Introductory Chemistry: An Active Learning Approach
6th Edition
ISBN:9781305079250
Author:Mark S. Cracolice, Ed Peters
Publisher:Mark S. Cracolice, Ed Peters
Chapter2: Matter And Energy
Section: Chapter Questions
Problem 78E: A particulate-level illustration of the reaction AB+CDAD+CB is shown below. a Identify the reactants...
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