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Many atomic dimensions are measured in Angstroms, 1 A= 10^-10m. What is the wavelength in angstroms of red light with a wavelength of 754nm? The scandium III ion has a radius of .81 angstroms, what is the radius in picometers?
the compound as2i4 is synthesized by reaction of arsenic metal with arsenic triiodide. if a solid cubic block of
Determine how many dump trucks loads will be transported? For calculation purposes, add a 15% ?fluff factor? (add to the volume that will be transported).
An equilibrium mixture at 225 degrees contains 0.14M NH3 and0.19 M H2 for the reaction of 3H2+N2=2. If the Kc at this temp is 1.0*102, what is the equilibrium concentration of N2
What is the major product when 2-bromo-2-methylpentane is treated with potassium t- butoxide in t- butanol
Find the molar mass of the compound and determine its molecular formula. What is the Lewis formula of the compund? predict the electonic and molecular geometry using the VSEPR model.
an evacuated empty 276 ml glass bulb weighs 129.6375 g. filled with an unknown gas the bulb weighs 130.0318 g.
The weight of the product (Hexaphenylbenzene) for this part of the reaction was 2.04 g. What is the percentage yield? What is the overall percent recovery for the three step process?
ZnCO3, a slightly soluble substance, is least soluble in which one of the following solutions solvents
What mass of silver chloride will be recovered if excess sodium chloride is added to 500 mL of solution containing 10.79g of Ag+?
The following reactions ZnBr2 (aq) + 2AgNO3 (aq) -->Zn(NO3)2 (aq) + 2AgBr (s) KBr (aq) + AgNo3 (aq) --> AgBr (s) + KNO3 are examples of a. oxidation- reduction reactions b. acid- base reactions c. precipitation reactions d. a and c e. none of thes..
30.0 mL of 0.500 M KOH are needed to neutralize 10.0 mL of HCl of unknown concentration.HCl + KOH ? KCl +H2O Show your work.
when relatively small amounts of magnesium burn the fires are extinguished using commercially available dry powder. why
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