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15 Cards in this Set

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  • Back
A _____ forms when electrons are shared between atoms.
covalent bonds
The _____ is the smallest unit of most compounds.
molecule
An _____ is formed when one or more elctrons are transferred from one atom to another.
ionic bond
Positively and negatively charged atoms are _____
ions
intermolecular forces of attraction ______
van der Waals forces
A chemical _____ is a substance formed by the chemical combination of two or more elements in definite proportions.
compound
_____ is an attraction between molecules of the same substance
cohesion
_____ is an attraction between molecules of different substances
adhesion
A _____ is a material composed of two or more elements or compunds that are physically mixed together but not chemically combined
mixture
_____ indicates the concentration of H+ ions in a solution
pH scale
_____ are weak acids or bases that can react with strong acids or bases to prevent sharp, sudden changes in pH
buffers
All of the components of a ____ are evenly distributed thorughout the solution
solution
macromolecules are formed by a process called _____.
polymerization
smaller units, _____, join together to form ____
monomers, polymers
Two kinds of nucleic acids: ____ and _____
DNA, RNA