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Author Question: How can density be helpful in identifying a pure metal from an ... (Read 31 times)

james9437

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on: Jul 28, 2018
How can density be helpful in identifying a pure metal from an alloy?

Question 2

Why does the density of water vary with temperature?


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kingdude89

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Reply #1 on: Jul 28, 2018
Answer to Question 1

The density of a pure metal is a definite physical constant. An alloy will have a
slightly different density. A check on melting points will give further evidence.

Answer to Question 2

A brief answer the student might give is that the density of water is a function of the
mass of the water molecules and the spacing between them. The spacing is a function
of temperature and becomes a minimum at 3.8C.


james9437

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Reply 2 on: Jul 28, 2018
Gracias!

mjenn52

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Reply 3 on: Yesterday
Excellent

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