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Predict the valence electron molecular orbital configurations for the following, and state whether they will be stable or unstable ions.
(a) Na2 2+(b) Mg2 2+(c) Al2 2+(d) Si2 2+(e) P2 2+(f) S2 2+(g) F2 2+(h) Ar2 2+
The standard molar heat of fusion of ice is 6020 J/mol. Calculate q, w, and E for melting 1.00 mol of ice at 0C and 1.00 atm pressure.
If 2.55 g of NaOH were added to a 100.0 mL solution containing 0.10 M Ca(NO3)2, what concentration of Ca 2+ remains in solution?
What is the difference between a chemical change and a chemical reaction
Draw the product that is formed when (3R, 6R)-6-chloro-2,3-dimethyloctane reacts with sodium iodide in acetone
An unknown compound containing only carbon and hydrogen was burned in excess oxygen. When 8.480 grams of the compound was burned, 26.608 grams of carbon dioxide and 10.895 grams of water were produced.
What is the de Broglie wavelength in cm, of a 12.7 g hummingbird flying at 1.15 multiplied by 102 mph? (1 mile = 1.61 km.)
Given a column of air with a pressure of 1.57 x 10^5 Pa and an area of 1.12 m^2 and given that the acceleration due to gravity is 9.8 m/s^2, what is the mass of this column
Imagine two solutions with the same concentration as well as the same boiling point, however one has ethanol as the solvent and the other has carbon tetrachloride as the solvent. Find out that concentration and boiling point.
A radioactive sample contains 1.30g of an isotope with a half-life of 3.5 days. What mass of the isotope will remain after 5.6 days? (Assume no excretion of the nuclide from the body.)
One of the main components of hard water is CaCO3. When hard water evaporates, some of the CaCO3 is left behind as a white mineral deposit. If a hard solution is saturated with calcium carbonate, what volume of the solution has to evaporate to dep..
What is the pH of a 0.1 M solution of ethylamine, given that the pKa of ethylammonium ion
The enzyme catalase catalyzes the decomposition of hydrogen peroxide. The following data are obtained regarding the rate of reaction as a function of substrate concentration.
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