I need help solving and showing work for stoichiometry problems 1-5 just like the problems shown in 1-3. If you can show work for at least one so I can understand better that would be really helpful. Thank you!!

Which two scientific disciplines are bridged by pharmaceutical drugs? chemistry and forensics chemistry and medicine biology and forensics biology and criminology

Sodium nitrite (nano2) reacted with 2−iodooctane to give a mixture of two constitutionally isomeric compounds of molecular formula c8h17no2 in a combined yield of 88%. draw reasonable structures for these two isomers. click the "draw structure" button to launch the drawing utility. place the two compounds in the appropriate boxes below.

What type of matter is made of only one kind of atom