Write the molecular formula for a compound with the possible elements c, h, n and o that exhibits a molecular ion at m+ = 84.095 i understand the concept of adding together the specific mass c=12.000, h=1.008, n=14.003 and o=15.995 but i need with a systematic approach to solve for these problems when that is the only information that is given.

What is the strongest intermolecular force between an nacl unit and an h2o molecule together in a solution? covalent bonding dipole-dipole force hydrogen bonding ion-dipole force

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

The scheme below is from a series of reactions that are part of a synthesis of vitamin a. answer the following questions with reference to this scheme. (i) what is "reagent a"? (ii) draw a step-by-step mechanism which explains the formation of compound c from compound b (iii) which reagents would you use to form compound e from compounds c and d (reagents b and c)? for each reagent suggested above in (ii) explain the role of the reagent in the reaction to (iv) form compound e. you may wish to do this by drawing a mechanism. 1. addition of reagent a но reagent a 2. н, о" thо oh нон-с compound a. compound b. compound c .ch-оh 1. reagent b "сно 2. reagent c сh oh compound e. compound d.