B when the unknown compound is added to water it

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Unformatted text preview: ross out these same two compounds in the tables in parts (b), (c), and (d). Al(NO3)3. 9H2O NaCl BaCl2. 2H2O BaSO4 CaCO3 Ni(NO3)2. 6H2O CuSO4. 5H2O One point is earned for each correctly crossed-out compound. (b) When the unknown compound is added to water, it dissolves readily. In the table below, cross out the two compounds that can be eliminated using this test. Be sure to cross out these same two compounds in the tables in parts (c) and (d). Al(NO3)3. 9H2O NaCl BaCl2. 2H2O BaSO4 CaCO3 Ni(NO3)2. 6H2O CuSO4. 5H2O One point is earned for each additional correctly crossed-out compound. (c) When AgNO3(aq) is added to an aqueous solution of the unknown compound, a white precipitate forms. In the table below, cross out each compound that can be eliminated using this test. Be sure to cross out the same compound(s) in the table in part (d). Al(NO3)3. 9H2O NaCl BaCl2. 2H2O BaSO4 CaCO3 Ni(NO3)2. 6H2O CuSO4. 5H2O One point is earned for crossing out Al(NO3)3. 9H2O or for crossing out Ni(NO3)2. 6H2O if it had not been crossed out earlier. © 2008 The College Board. All rights...
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