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How many moles of Fe are there in a sample of Fe that contains 3.27×1024 atoms? _______

Which of the following paired muscles and actions are NOT correct?

The element chlorine has an average atomic mass of 35.453 amu and consists of two stable isotopes chlorine-35 and chlorine -37.The isotope chlorine-35 has a mass of 34.96885 amu and a percent natural abundance of 75.76 %.The isotope chlorine-37 has a percent natural abundance of 24.24 %.What is the mass of chlorine-37 in amu?  _______

Calculate the molar mass of the compound ammonium nitrate in g/mol. _______

You need to make an aqueous solution of 0.347 M zinc chloride for an experiment in lab, using a 125 mL volumetric flask. How much solid zinc chloride (136.286 g/mol) should you add? _______

When 3.285 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 10.307 grams of CO2 (44.01 g/mol) and 4.220 grams of H2O (18.02 g/mol) were produced.Determine the empirical formula of the hydrocarbon.  _______

Calculate the percentage composition for sulfur in the compound disulfur heptafluoride to 4 sig figs. _______

What precipitate forms when mixing copper (II) sulfate and sodium sulfate?

The glenohumeral joint is very mobile and is susceptible to dislocations 

The clavicle has a direct articulation point with the humerus.