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chem vocab

TermDefinition
Nucleotide the building block of DNA and RNA
Neutrons neutral charges
Proton positive charges
Electrons negative charges
Sublimation changing from a gas to a solid without becoming a liquid
Boiling point the temperature at which a liquid boils and turns into vapor
Nucleic acid long molecules made of nucleotides
Metal a substance that is a good conductor of electricity and heat , forms cations by loss of electrons and yields basic oxides and hydroxides
phosphate group a phosphorus atom bound to four oxygen atoms
Condensation changing of vapor to gas or liquid
Density the amount of mass per volume
Boiling liquid at temperature at which it is changing to a vapor
melting changing from a solid to a liquid due to temperature
Meter Basic unit of length in the metric system
Hydrogen Bonds the attraction between hydrogen atoms and highly electronegative atoms
Volume the amount of space something take up
Freezing changing from a liquid to a solid due to temperature
Acid a substance with ph less than 7
Exergonic release energy
Anion a negatively charged ion
Carbohydrate sugars and starches, which the body breaks down into glucose
Endothermic involving absorption of heat
nonmetal any element or substance that is not metal
Gas a state of matter composed of molecules in constant random motions
solids a state of matter that retains its shape and density when not contained
Cation a positively charged ion
Gram metric unit of mass
Liter measurement of volume
Group A column of elements in the periodic table
Exothermic involving release of heat
Endergonic require energy
Catalyst a substance that increases the rate of a chemical reaction without undergoing permanent chemical changes
Melting point the temperature at which a solid changes to a liquid
Covalent bond a chemical bond in which electron pairs are shared between atoms
Ions a positively or negatively charged atom or molecule
Reactions can be _______ and_______. exergonic and endergonic
Base substance with ph greater than 7
Created by: jcol
 

 



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