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What are competencies, and why are they popular in training departments? How are competency models related to job analysis?
The reaction OH(aq) + HCN(aq) H2O(l) + CN(aq) is first-order in both the OH and HCN concentrations. The rate constant at 25oC is 3.7×10^9 mol^-1 L s^-1
What common mono-positive ions will coprecipitate with barium sulfate in the determination of soluble sulfate
Write the empirical formula for at least four ionic compounds that could be formed from the following ions
A company that produces parts for the space station generates a toxic compound named MED that needs to be decomposed before the waste stream is released into the environment. The company generates 500 gal/day of a waste stream that contains 1000 m..
a piece of copper wire is 25 feet long and has a diameter of 2.0mm. copper has a density of 8.92gcm3.a how many mols of
Calculate ΔH of the reaction per mole of AgCl produced. Assume the density of the solution is 1.00 g/mL and the specific heat is 4.184 J/g °C
The vapor pressure of chlorine dioxide (ClO2 ) is 155 Torr at -22.75 ? C and 485 Torr at 0 ? C. What is the normal boiling point of chlorine dioxide?
You have a graduated cylinder that contains a liquid (see photograph). Write the volume of the liquid, in milliliters, using the proper number of significant figures.
Consider the following element combinations. Classify the bonds formed between each pair as ionic, polar covalent, or nonpolar covalent based solely on each element's position on the periodic table
a helium-filled weather balloon has a volume of 815 l at 22 oc and 752 mmhg. it is released and rises to an altitude of
compare the rates of effusion for oxygen molecules as compared to hydroge molecules. which will effuse faster and by
Why is it not possible to use ethanol to extract an organic compound from water even though most organics are more soluble in ethanol than in water
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