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Which substances have the lowest melting points: ionic covalent, or metallic
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In the following table, all the columns for the element calcium are filled out correctly. element electron structure of atom electron structure of ion net ionic charge calcium 1s22s22p63s23p64s2 1s32s22p63s23p64s1 +1 true false
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How does carbon monoxide pose the greatest threat to humans? a. it can be produced by wood fires. b. it can be produced by home furnaces. c. it is produced by acid rain. d. it is produced by modern automobiles.
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Anitrogen atom and an oxygen atom combine chemically to form nitric oxide. what is nitric oxide?
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Find the molar mass of 8.54 x 10²⁴ g A₂O₃...
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