10. Calculate the number of moles represented by each of these: a) 127.08 g Cu b) 20.0 g calcium c) 16.75 g Al d) 0.012 g potassium e) 5.0 mg americium

A number of compounds have been selected as possible unknowns for this experiment. They are listed (arabinose, fructose, galactose, glucose, lactose ,maltose, mannitol, ribulose, starch, sucrose, xylose) Consider the structures of each unknown . The first two answer (in the box) have been done as examples The answer is made by taking the number in the box and choosing the correct answer Start mannitol Molisch Test (+) arabinose, fructose, galactose, glucose, lactose, maltose, ribulose, starch, sucrose, xylose (+) 1 Iodine/KI Test (-) 3 Benedict's Test (+) 4 (-) 5 Barfoed's Test (+) 6 (+) Seliwan. Test 8 Bial's Test Bial's Test (-) (+) (-) (+) 10 11 12

Curved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electron-pushing arrows for the following reaction or mechanistic steps. Be sure to account for all bond-breaking and bond-making steps. H. HH HH OHH HH H Na Ⓒ Select to Add Arrows CH3CH₂ONA, CH3CH₂OH CH3CH₂ONA, CH-CH-OH 10: Select to Add Arrows CH3CH₂ONA , CH3CH₂OH 30% dl

B2, UV C12 at

This pre-analytical variable can have an effect on chemistry tests which are read visually by spectrophotometry:   Question 8 options:   all answers are correct   icterus   lipemia   hemolysis

Please help ASAP Interpret these graphs

Is there any other way they can be differentiated?