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is D2 radioactive?
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what is the molar mass of mercuric nitrate
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Why is pentadiene more acidic than pentane?
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3. Using the bond energies below, determine the value and sign of H for the Reaction: 2H-Br + F-F 2H-F + Br-Br Bond energies in kJ/mole: H-Br 362.3 H-F 565 F-F 154.8 Br-Br 190.0 4. When...
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ideal gas particles are assumed to be volumeless and to neither attract nor repel each other. Why are these assumptions crucial to the validity of dalton's law of partial pressure
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explain why adding excess (PO4)3 will cause a more complete precipitaion of Ca3(PO4)2.
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about 88 percent of geologic time is represented by the time span called the ________.
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rank the following four compounds from the most reactive to the least reactive in order of their reactivity toward electrophilic aromatic substitution: benzene, bromobenzene, benzaldehyde and aniline
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Ksp for PbCrO4 at 25oC is 2.0 x 10-14. A sample of 1.000 mg of PbCrO4 is added to 1.0 L of water at this temperature. 1. How many milligrams of PbCrO dissolves? 2. how many milligrams of PbCrO remains undissolved?
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Calculate the molar solubility of AgI in pure water.
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Sample Questions
- 1. For organic chemistry, what is a concerted shift? How do things like acids or heat affect them? What other factors affect them?
- 2. Which of the following reactions is an acid-base neutralization reaction? Why are the rest of the answers incorrect?
- A. AgNo3 (aq) + NaI (aq) --> AgI (s) + NaNO3 (aq)
- B. S8(s) + 8O2 (g) --> 8SO2(g)
- C. Na3PO4 (s) + 2H2O (l) --> H2 (g) + 2NaOH (aq)
- D. Ca (OH)2 (aq) + 2HI (aq) --> CaI2(aq) + 2H2O (l)
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