Vocab 1
A _______ _______ is the process in which atoms are rearranged to produce new substances
chemical reaction
The ___ _ ______ __ ________ states that matter is neither created nor destroyed in ordinary physical or chemical changes
Law of conservation of mass
A ________ is an organic compound that contains only carbon and hydrogen atoms
hydrocarbons
Atoms with the same number of protons but different numbers of neutrons are called _______
isotopes
A _______ _______ uses chemical symbols and numbers to represent a given substance
Chemical Formula
A chemical reaction that requires an input of energy is called an _________ __________.
endothermic reaction
An _____ ______ is an organic compound that has acidic properties.
organic acid
_________ _______ is a nuclear reaction in which an unstable nucleus can give off energy and, sometimes, particles
radioactive decay
A _______ ______ is an expression that uses symbols to show the relationship between the starting substances and the substances that are produced by a chemical reaction
chemical equation
A chemical reaction in which energy is released to the surroundings is called an ______ ________.
exothermic reaction
A __________ is a neutral organic compound containing carbon, hydrogen, and oxygen
carbohydrate
The nuclear reaction in which a large, unstable nucleus breaks into two smaller nuclei is called _______ ___________
nuclear fission
_______ are the substances that participate in a chemical reaction
reactants
The ___ __ _________ __ ______ states that energy can not be created or destroyed.
law of conservation of energy
_______ are molecules composed of the same repeating small groups of atoms joined together in long chains
polymers
______ ________ is the process by which nuclei of small atoms combine to form a new, more massive nucleus
nuclear fusion
___________ are the substances formed in a reaction.
products
An _______ ________ is a chemical compound that is composed of carbon, hydrogen, and possibly other elements.
organic compound
A _______ ______ is a change that affects the nucleus of the atom
nuclear reaction
The repeating groups of polymers are called ______
monomers