Chemistry

Which of the following words mean "made stronger"?

More Questions from Chemistry
What gas makes up most of the atmosphere of Mars?
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Carbon Dioxide, often given off in a fire, is comprised of what?
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What is the most abundant element in the known universe?
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What is used in manufacturing matches, fertilizers and pesticides, and in vulcanization of rubber?
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What is an atom that has more electrons than normal referred to as?
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What is the molecular geometry of the molecule sulfur hexafluoride?
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What element, used in some types of paint, created a health risk to children who ate paint chips?
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All of the halogens form acids when bonded to what element?
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