chem and phys changes
the beginning materials in a chem reaction
reactant
scratching to determine how hard it is
hardness
the produced substances in a chem reaction
product
a solid witholding to shatter when hammered or shaped
malleability
releasing energy due to the chemical reaction
exothermic
the ability of heat to flow throughout
conductivity
absorbing energy due to the chem reaction
endothermic
mass divided by volume or d=m/v
density
heating decreases ______
ex: honey
conductivity