Question

When platinum wire is heated, no new substance is formed. The wire becomes white Hot, but is still platinum. What would you say about this change?​

Answer 1

Answer:

It is a physical change.

Explanation:

Since no new substance was formed after the change and it is reversible.

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Answer 2

A chemical change involves changing what makes up the substance or the way the substance reacts with other substances. When a normal platinum wire is placed over a flame, it glows. This is a physical change because the things that make up the platinum have not been changed, but the appearance has changed