Chemistry

What is the name for naturally-occurring alloy of gold and silver with a small amount of other metals?

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Which has no part in the scientific method of experimentation?
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Which of these is a chemical form of communication?
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Who is generally credited with discovering the electron?
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What are chemicals that reduce or prevent oxidation called?
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What allotrope of oxygen helps protect the biosphere from solar ultraviolet radiation?
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Reacting an alkene with water produces which of the following?
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Which of the following words mean "made stronger"?
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In an ethyne molecule, what is the hybridization of each of the carbons?
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