Determine the number of hydrogen atoms in each compound, given the number and type of nonhydrogen atoms it contains and its IHD. (a) Four carbon atoms: IHD = 0. (b) Four carbon atoms: IHD = 2. (c) Three carbon atoms: two oxygen atoms: IHD = 1. (d) Five carbon atoms: two chlorine atoms: one nitrogen atom: IHD = 3. (e) One carbon atom: one nitrogen atom: IHD = 2. (f) Six carbon atoms: two nitrogen atoms: one oxygen atom: three fluorine atoms: IHD = 4.