(a) cyanic acid (h−o−c≡n) and isocyanic acid (h−n=c=o) differ in the positions of their electrons but their structures do not represent resonance structures. explain.

Given that the molar mass of nano3  is 85.00  g/mol, what mass of nano3  is needed to make 4.50  l of a 1.50  m nano3solution? use  .6.75 g18.9 g255 g574 g

What is the independent variable in this investigation? mass volume sample number substance density

Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.