Changes in Matter

Question 1

Do you have a copy of the Student Guide, PDF or Word, for this lab, including your data table?

Revolt · Accepted Answer

yes

Question 2

Have you gathered all the materials needed?

Revolt · Accepted Answer

yes

Question 3

Which answer below correctly identifies the type of change and the explanation for the change in calcium carbonate?

Revolt · Accepted Answer

physical change because even though a particle size change was observed, the calcium carbonate retained its original properties and was not transformed into a new substance

Question 4

Which answer below correctly identifies the type of change and the explanation for the separation of the iron with sulfur?

Revolt · Accepted Answer

physical change because even though a color change occured, each solid maintained its original properties, which could be seen as soon as the magnet was applied

Question 5

Which answer below correctly identifies the type of change and the explanation when potassium iodide and lead nitrate are mixed?

Revolt · Accepted Answer

chemical change because both a color change and a solid formation were observed, which provide strong evidence of a new substance

Question 6

Which answer below correctly identifies the type of change and the explanation when magnesium comes into contact with hydrochloric acid?

Revolt · Accepted Answer

chemical change because a temperature change occurred, a solid disappeared, and a gas was produced

Changes in Matter Answers

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