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Check the correct box to describe the periodic trends in electronegativity. electronegativity across a period: decreases. increases. electronegativity down a group: decreases. increases.
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Ted and emily played a mixed doubles tennis match against jack and brenda. in the second match. ted and brenda played against jack and emily. which type of chemical reaction does the situation demonstrate?
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Silver reacts with oxygen to produce silver oxide. (write balanced chemical equation and identify type of chemical reaction.)
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Where was the famous yellow band of limestone at the top of the Himalayan Mountains formed?...
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