More on sulphide from Fact Monster:

• sulfide - sulfide sulfide, chemical compound containing sulfur and one other element or sulfur and a radical. ...
• OCEAN FLOOR - Just a century ago, the ocean floor was largely unknown. Now we know that the deep oceans have features such as mountains, deep valleys, and vast plai
• GLASS - First made over 5,000 years ago, glass is a thick liquid that never completely sets (hardens). That is why old window panes are thicker at the bottom
• WATER - The simple combination of two hydrogen atoms and one oxygen atom creates a water molecule (H2O). Water is the most common compound on Earth, making up
• Encyclopedia: Compounds and Elements - Encyclopeadia articles concerning Compounds and Elements.

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