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1) Which Ion will be larger, Cr^3+ or V^3+. Explain why 2) How and why does Silicon form a "network covalent oxide"? what is a network covalent oxide 3) Why does Fe^2+ and Co^3+ have the same noble gas electron configuration of [Ar]3d^6
in a particular titration experiment a 25.0 ml sample of an unknown monoprotic acid required 30.0 ml of .200 m naoh for
magnetite was found to contain 2.5698 g of iron and 0.9816 g oxygen. What is the empirical formula for this oxide of iron?
What is the difference between alpha-glucose and beta-glucose? and show the condensation of two glucose molecules to form a disaccharide with an alpha linkage; with a beta linkage.
organic reactions can be classified as substitutions eliminations or additions and the reagents can be classified as
Determine the Ka value of acetic acid at 105 degrees C from the following data: A 0.3 Molar aqueous solution of acetic acid shows a pH of 2.642 at 105 degrees C. You can use the approximation formula here because the concentration of the acetic ac..
find the amount of known substance present in the mixture.a mixture of calcium carbonate and calcium oxide that weighed
Calculate the percent ionization of arsenous acid (H3AsO3) in solutions of each of the following concentrations (Ka = 5.1e-10.) (a) 0.217 M % (b) 0.598 M % (c) 0.726 M %
Write the total ionic equation for this reac- tion occuring in water: Calcium sulfide and iron(II) bromide are mixed to form iron(II) sulfide and calcium bromide.
The equation for the oxidation of ethanol by alcohol dehydrogenase (ADH) is CH3CH2OH + NAD+ ? CH3CH) + NADH + H+. The extinction coefficient of NADH is 6220 M-1 cm-1 + H+. If you incorrectly transcribed the extinction coefficient as 16220 M-1 cm-1..
If strong oxidizer spill occurs in the vicinity of barrels of flammable chemicals, with one of the barrels of flammable chemicals possible leaking as well, should water be used on the incident or how should mitigation proceed?
what is the maximum wavelength of light that can be used to exhibit the photoelectric effect with lithium metal? it requires 279.7 kJ to remove one mole of electrons from Li atoms
Silver has an average atomic mass of 107.87 u. If 48.18% of Ag exists as Ag-109 (108.9047 u), what is the identity and the atomic mass of the other isotope?
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