Nonpolar covalent bond
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covalent bond that forms between atoms when electrons are shared
equally between them
Polar covalent bond
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covalent bond that forms as a result of unequal electron sharing, resulting
in a slightly positive and negative charged molecule regions
,Hypothesis
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-An explanation based on observation & assumption
-Must be tested
-derived from experimentation
Structure of DNA
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-double helix (double strand)
-Thymine (Base) (special to DNA)
-Deoxyribose (sugar)
-carries genetic info
Isotope
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-different forms of an element that have the same number of protons but a
different number of neutrons.
-Carbon-12 contains six protons, six neutrons, and six electrons; therefore,
it has a mass number of 12 (six protons and six neutrons). Carbon-14
contains six protons, eight neutrons, and six electrons; its atomic mass is 14
(six protons and eight neutrons). These two alternate forms of carbon are
———
, Hydrogen Bond
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weak bond between slightly positively charged hydrogen atoms and
slightly negatively charged atoms in other molecules
Monomer
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-A simple compound whose molecules can join together to form polymers
-building blocks of macros
Cohesion
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Tendency of molecules of the SAME kind to stick together...responsible for
suface tension
Polysaccharide
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covalent bond that forms between atoms when electrons are shared
equally between them
Polar covalent bond
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covalent bond that forms as a result of unequal electron sharing, resulting
in a slightly positive and negative charged molecule regions
,Hypothesis
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-An explanation based on observation & assumption
-Must be tested
-derived from experimentation
Structure of DNA
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-double helix (double strand)
-Thymine (Base) (special to DNA)
-Deoxyribose (sugar)
-carries genetic info
Isotope
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-different forms of an element that have the same number of protons but a
different number of neutrons.
-Carbon-12 contains six protons, six neutrons, and six electrons; therefore,
it has a mass number of 12 (six protons and six neutrons). Carbon-14
contains six protons, eight neutrons, and six electrons; its atomic mass is 14
(six protons and eight neutrons). These two alternate forms of carbon are
———
, Hydrogen Bond
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weak bond between slightly positively charged hydrogen atoms and
slightly negatively charged atoms in other molecules
Monomer
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-A simple compound whose molecules can join together to form polymers
-building blocks of macros
Cohesion
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Tendency of molecules of the SAME kind to stick together...responsible for
suface tension
Polysaccharide
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