30 points calculate the number of moles of each element (number of moles of na & number of moles of cl) in nacl in the sample. (use your answer from part a as your starting point.) show your work. known: -17.44g (nacl sample) -molar mass = 58.44 (both) 17.44g nacl * 1 mol nacl/58.44g nacl = 0.298 (mol of nacl)

Both josef loschmidt and amedeo avogadro contributed to our understanding of basic molecular numbers, sizes, and reaction ratios. neither scientist discovered “avogadro’s number” in the form we use it today (6.02 x 10 23). still, there’s a controversy over the name. research the contributions from these two scientists and read about how avogadro’s number got its name. briefly state what you think this number should be called, providing key details of each scientist’s contributions to this concept and a solid rationale for your case in naming the number.

Element j is 1s 2s 2p 3s . (i) how many unpaired electrons does j have? (ii) is j a good oxidizing agent or a reducing agent? (iii) state reason for the answer.

Convert a speed of 201 cm/s to units of inches per minute. also, show the unit analysis by dragging components into the unit‑factor slots.