Some observations about a box are given. Based on these observations, the model for the interior mechanism of the box is to be constructed. Also, the further experiments to refine the model are to be stated. To determine: The model for the interior mechanism of the box constructed based on the given observations.

Question

There are four sketches below. The first sketch shows a sample of Substance X. The three sketches underneath it show three different changes to the sample. You must decide whether each of these changes is possible. If a change is possible, you must also decide whether it is a physical change or a chemical change. Each sketch is drawn as if the sample were under a microscope so powerful that individual atoms could be seen. Also, you should assume that you can see the entire sample, and that the sample is in a sealed box, so that no matter can enter or leave. Sample of Substance X Change 1 Change 1 is O impossible O O a chemical change a physical change Change 2 Change 2 is: impossible O a physical change O a chemical change Change 3 000 000 Change 3 is: O impossible O a physical change O a chemical change X

Answer 1

Question

Chapter 1, Problem 64CP

(a)

Interpretation Introduction

Interpretation: Some observations about a box are given. Based on these observations, the model for the interior mechanism of the box is to be constructed. Also, the further experiments to refine the model are to be stated.

To determine: The model for the interior mechanism of the box constructed based on the given observations.

(b)

Interpretation Introduction

Interpretation: Some observations about a box are given. Based on these observations, the model for the interior mechanism of the box is to be constructed. Also, the further experiments to refine the model are to be stated.

To determine: Further experiment to refine the model.

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