Help plz, running out of time
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What are the percent by mass of copper in penny lab
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Which formula can be used to calculate the molar mass of ammonia (nh3)? molar mass of n + molar mass of h 3 × molar mass of n + molar mass of h molar mass of n + 3 × molar mass of h 3 × molar mass of n + 3 × molar mass of h
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Which element would mostly likely have an electron affinity measuring closest to zero
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Which statement best explains the relationship between an area is geography and the temperature of its surface water
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