Recent content by greg153

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    What Experimental Evidence Demonstrates Energy Quantization in Atoms?

    Homework Statement What experimental evidence requires that the emission of energy by an atom be quantized? The Attempt at a Solution I can completely confused on what the question is asking. What do they mean by "experimental evidence"? Do I talk about Bohr and how he proposed that to...
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    Valence States of Chromium and Silver in Net Ionic Equations: Which One to Use?

    Thanks.
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    Valence States of Chromium and Silver in Net Ionic Equations: Which One to Use?

    Thanks borek. :) Another quick question. Neither of these reactions would occur correct? 1.Au + HCl No reaction since Au is below H2 in the activity series. 2.Ni + Ca(C2H3O2)2 (Ca acetate) No reaction since Ni is below Ca in the activity series.
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    Valence States of Chromium and Silver in Net Ionic Equations: Which One to Use?

    Homework Statement I have to write a net ionic equation for Cr and silver nitrate, but I am confused on which valence state to use, since Cr has multiple valence states ie +2, +3 and + 6.2. The attempt at a solution If I use the valence state of +2 I end up with: Cr(s) + 2 Ag+(aq) = 2 Ag (s) +...
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    Did I Balance These Chemical Equations Correctly?

    Thanks. So would this be correct? Zn + 2HgNO3 -> Zn(NO3)2 + 2Hg
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    Did I Balance These Chemical Equations Correctly?

    I completed these, and I wanted to check if I did them correctly. A)Write and balance equations for these reactions: 1.zinc + mercurous nitrate --> Zn + 2HgNO3 -> Zn(NO3)2 + 2Hg OR 2Zn + Hg2(NO3)2 -> 2Hg + ZnNO3 2.tin + antimony (V) chloride --> Sn + SbCl4 -> Sb + SnCl4...
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    What Is the Correct Name for BaHPO3?

    Homework Statement Name the following compound: BaHPO3 2. The attempt at a solution Im confused on whether it is: BaHPO3-->barium hydrogen phosphite? BaHPO3-->barium phosphonate? OR BaHPO3-->barium phosphite? Or am i completely wrong with all 3 guesses?