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24 terms

Holt physical science chapter six

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Chemical Bond
the attractive force that holds atoms or ions together
Chemical Structure
The arrangement of atoms in a substance
Bond length
The average distance between the nuclei of two bonded atoms
Bond angle
The angle formed by two bonds to the same atom
Ionic Bond
The attractive force between oppositely charged ions, which form when electrons are transferred from one atom to another
Covalent bond
A bond formed when atoms share one or more pairs of electron
Metallic Bond
a bond formed by the attraction between positively charged metal ions and the electrons around them
Polyatomic Ion
an ion made of two or more atoms
Empirical Formula
the composition of a compound in terms of the relative numbers and kinds of atoms in the simplest ratio
Molecular Formula
A chemical formula that shows the number and kinds of atoms in a molecule, but not the arrangement of atoms
Organic Compound
A covalently bonded compound that contains carbon, excluding carbonates and oxides
Polymer
A large molecule that is formed by more than five monomers, or small units
Carbohydrates
A class of molecules that includes sugars, starches, and fiber. Contains carbon, hydrogen, and oxygen.
Protein
An organic compound that is made of one or more chains of amino acids that is a principal component of all cells
Amino Acid
A compound of a class of simple organic compounds that contain a carboxl group and an amino group and that combine to form proteins
Ammonium
NH4 +1
Hydroxide
OH -1
Nitrate
NO3 -1
Acetate
C2H302 -1
Cyanide
CN -1
Chlorate
ClO3 -1
Sulfate
SO4 -2
Carbonate
CO3 -2
Phosphate
PO4 -3