Chemical substance In organic chemistry, there can be more than one chemical compound with the same composition and molecular weight. Generally, these are called isomers. Isomers usually have substantially different chemical properties, and often may be isolated without spontaneously interconverting. A common example is glucose vs. fructose. The former is an aldehyde, the latter is a ketone. Their interconversion requires either enzymatic or acid-base catalysis. However, tautomers are an exception: the isomerization occurs spontaneously in ordinary conditions, such that a pure substance cannot be isolated into its tautomers, even if these can be identified spectroscopically or even isolated in special conditions. A
Eliot Lewis <br> Innocence (Instrumental) <br> Highway <br> Earth And Back (Instrumental) Introduction (featuring Corrie Lewis) <br> Never Tell Me <br> Determination <br> Adventure <br> Enjoy The Ride (Instrumental) <br> Live And Learn <br> One Life <br> Soul Of The City <br> Helpless (Instrumental) <br> Get Back What You Give <br> Lost Crusade <br> Soundtrack <br> Sonic Soldier (instrumental) <br> History <br> Back to Basics Eliot Lewis Eliot Lewis (born March 10, 1962) is an American rock, R&B and soul singer, keyboardist, guitarist, bassist, drummer, songwriter, and producer. He is best known for his work with Average White Band (1989-2002) and Hall