The carbon-nitrogen bond in formamide, HCONH2, has been shown to have a bond length that is in between a typical C-N single bond and a C=N double bond. Provide an explanation for this observation, using relevant chemical structures to support your explanation.

Draw the lewis dot structure for each of the following polyatomic ions

Some liquids can be distilled, but only at temperatures that are so high that it is impractical, or so high the compound decomposes. explain why distillation such compounds at significantly less than atmospheric pressure (some degree of vacuum) would solve this problem.

To calculate percent by mass, use the equation below: calculate the percent by mass of each element. %n = % %h = % %o = %