Chemistry

Which noble gas has "A" as its first letter?

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What are vast amounts of oil that have become trapped in one place called?
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The noble gases that make up Group XVIII of the periodic table is also known as which of the following?
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From all salt elements, which group is most soluble?
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What is the symbol used on the periodic table for the element Lawrencium?
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All of the halogens form acids when bonded to what element?
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What symbol appears on the periodic table for Magnesium which has the atomic number 12?
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Approximately how many chemicals are in a cup of coffee?
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What is a chemical or physical agent that tends to cause cancers?
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