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14-12-2016
Chemistry

Answered

Tooth fillings are often made of gold or porcelain because these materials are ______.

a.

explosive

c.

visually pleasing

b.

nonreactive

d.

chemically similar to teeth

Please select the best answer from the choices provided

Verified Answer :

Anonymous Anonymous

14-12-2016

They are non-reactive because they can't rust. When iron is in oxygen it rust, gold is not like that.

I think I'm correct

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