General Chemistry II (CHM102) Practice Flashcards

Ten practice flashcards covering purification methods, reaction mechanisms, transition metals, and organic chemistry fundamentals from CHM102.

What are mixtures that have fixed boiling points called?

Azeotropes

According to the lecture notes, purification of organic compounds depends on which three factors?

I. Quality of material, II. Physical/chemical phenomena, and III. Nature of substance

What is defined as the step-by-step sequence of elementary changes in a chemical process?

Mechanism

In chemistry, what is the term for a substance that donates an electron pair?

Lewis Base

Why do transition metals exhibit variable oxidation states?

Because electrons are lost from outer and inner orbitals

How many isomers are possible for the alkane pentane?

$$3$$

What specific type of isomers are $CH_3CH_2OH$ and $CH_3OCH_3$?

Functional group isomers

In what year did Frederick Wohler convert ammonium cyanate into urea?

$$1828$$

What term describes molecules that are non-superimposable mirror images of each other?

Enantiomers

What is the strong interaction between a covalently bonded hydrogen atom and an atom with lone pairs, such as $O$, $N$, or halogens, called?

Hydrogen bonding