HB Chemistry vocab Flashcards
anything that takes up space and has mass
matter
energy that is doing work
kinetic energy
energy that is stored
potential energy
stored in the bonds of chemical substances
chemical energy
movement of charged particles
electrical energy
directly involved in moving matter ex. legs pedaling a bike
mechanical energy
travels in waves ex. x rays, infrared
radiant energy
substance that cannot be broken down into simpler substances
element
building block of an element, smallest particle to retain it’s special properties
atom
atoms with a positive charge
protons
atoms with no charge
neutrons
atoms with a negative charge
electrons
two or more atoms combine chemically
molecules
two or more different atoms bind together
compound
when atoms combine or dissociate from other atoms
chemical reaction
atoms outermost shell
valence shell
when electrons are completely transferred from one atom to another
ionic bonds
charged particles
ions
sharing of electron pairs
convalent bonds
weak bond between two molecules
hydrogen bonds
multiple reactants that form one product
synthesis reactions
the chemical reactions that happen after death
decomp reactions
chemical reactions between two substances
exchange reactions
