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Biology 2.1 Easy
AP
27
Biology
12th Grade
10/05/2010

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Term
the attraction that holds molecules together
Definition
chemical bond
Term
involves the valence electrons in the outer shell
Definition
chemical bond
Term
an atom's ability to attract and hold electrons
Definition
electronegativity
Term
covalent polar or nonpolar
Definition
ionic bond
Term
what is the goal of ionic bonds
Definition
to fill the outer shell
Term
ionic bonds form?
Definition
ions
Term
positively charged ions
Definition
cations
Term
negative charged ions
Definition
anions
Term
this involves the sharing of electrons
Definition
covalent bonds
Term
the two types of covalent bonds are?
Definition
polar and nonpolar
Term
these are the strongest types of bonds
Definition
nonpolar bonds
Term
here the electrons are shared equally
Definition
nonpolar
Term
small or no difference in electronegativity
Definition
nonpolar
Term
bond between two carbons
Definition
nonpolar
Term
bond between carbon and hydrogen
Definition
nonpolar
Term
what does nonpolar mean?
Definition
not soluble in water
Term
eletrons are not shared equally
Definition
polar covalent
Term
there is a difference in electronegativity
Definition
polar covalent
Term
H20
Definition
polar covalent
Term
oxygen has high what?
Definition
electronegativity
Term
bond between O-H
Definition
polar covalent
Term
these are weak bonds
Definition
hydrogen bonds
Term
these are easily formed and broken
Definition
hydrogen bonds
Term
bond between H-H
Definition
Term
hydrogen bonds determine properties of what?
Definition
water
Term
these are the source of the transport of what in plants?
Definition
fluid
Term
holds the base pairs of what together?
Definition
DNA
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