organic chemistry vocab flashcard Ch 6

Front

Building blocks of matter

Back

atoms

Front

Central, positive core of every atom.

Back

nucleus

Front

A pure substance made of a single type of atom that cannot be broken down.

Back

Element

Front

Pure substance formed when two or more atoms join in a fixed ratio

Back

compound

Front

A compound with atoms held by covalent bonds.

Back

Molecule

Front

Attractive force between a negative region on one molecule and a positive region on a neighboring molecule.

Back

van der waals forces

Front

Substance releasing H+ ions in water.

Back

acid

Front

Minimum energy to start a chemical reaction.

Back

activation energy

Front

Carbon compounds linked by peptide bonds to form proteins.

Back

Amino acids

Front

A substance that can react with an acid or base to maintain pH.

Back

buffer