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Using a periodic table, identify the element whose atoms have 11 protons. Is it a metal, a nonmetal, or a metalloid? Write one or two sentences describing how an atom of this element changes when it forms an ionic bond.
Nitrate compounds are insoluble and form precipitates. Most carbonate compounds form precipitates due to their low solubilities. Group IA elements form compounds that are precipitates.
Upon isolation of the product it appears to be optically inactive. Explain what must have happened mechanistically. If your goal is to synthesize (S)-2-iodobutane, how might you modify the experiment to ensure that you do so in your next attempt
The precipitate that forms in the qualitative analysis of the chloride ions is AgCl. Calculate the mass of AgCl that should be produced when an excess of AgNO3 is reacted with 0.1900 g of [Co(NH3)5Cl]Cl2.
Although the viscosity varies over a factor of more than two in the series from hexane to nonane, the surface tension at at 25 degrees Celsius increases by only about 20% in the same series. How do you account for this
Explain in gory detail the relationship between temperature and vapor pressure. Lots of pictures might be helpful. Why does water expand when it freezes?
use average bond energies to estimate the energy change in kjmol for the reaction all bonds are single bonds except as
A chunk of metal weighing 15.45 g is added to 21.27 mLof water in a graduated cylinder. The water rises to 24.78 mL. Calculate the density of the metal.
Illustrate the bond angles which are at least slightly different in the C2H2Br2 molecule. Therefore this has isomers and find the isomer that shows the least slightly different bond angle
The temperature of the entire system rose from 25.30 °C to 26.59 °C. Calculate the heat of reaction, in kJ, per mole of KOH(aq).
The molecular weight of a compound can be determined by proton NMR. The NMR spectrum of an unknown compound revealed that the compound had a total of six hydrogen atoms.
Which surface emits electrons with the longer wavelength. What is the wavelength of the electrons emitted by the titanium surface
Coniine, a toxic substrate solution isolated from poison hemlock, contains only Carbon, Hydrogen, and Nitrogen. combustion analysis of a 5.024g sample yields 13.90mg of CO2 and 6.048mg of H20. what is the empirical formula of Coniine
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