Chemistry

Neptunium on the periodic table is noted by which symbol?

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What percentage of acetic acid is legally allowed in vinegar?
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What is a link between atoms in a molecule called?
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What allotrope of oxygen helps protect the biosphere from solar ultraviolet radiation?
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What is the symbol used on the periodic table for the element Aluminum?
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What particle has a positive charge of 1 unit?
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The red color of rubies is caused mainly by the presence of what element?
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What is often used in advertising signs and produces a bright reddish-orange light?
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What are the two alkalines to be found in the kitchen?
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