Which group 14 element is classified as a metal?
(1) carbon (3) silicon
(2) germanium (4) tin

In a popular classroom demonstration, solid sodium is added to liquid water and reacts to produce hydrogen gas and aqueous sodium hydroxide. part a write a balanced chemical equation for this reaction. express your answer as a chemical equation. identify all of the phases in your answer.

Asolid that forms and separates from a liquid mixture is called

What is formed when amino acids form long chains or polymerize