Chapter 8 vocabulary Flashcards
chemical equation
the arrow separates the formulas of the reactants (on the left) from the formulas of the products (on the right)
combination reaction
two or more substances combine to form a single substance
catalyst
a substance that speeds up the rate of a reaction but that is not used up in the reaction
spectator ion
ions that are not directly involved in a reaction
net ionic equation
the equation that indicates only those particles that actually take part in the reaction
decomposition reaction
when a single compound is broken down into two or more products
complete ionic equation
an equation that shows dissolved ionic compounds as their free ions
combustion reaction
an element or a compound reacts with oxygen, often producing energy as heat and light
double replacement reaction
involves an exchange of positive ions between two ionic compounds
activity series of metals
lists metals in order of decreasing reactivity
single replacement reaction
one element replace a second element in a compound
skeleton equation
a chemical equation that does not indicate the relative amounts of the reactants and products involved in the reaction
balanced equations
each side of the equation has the same number of atoms of peached side
coefficient
are the numbers placed in front of the symbols for the respective parts
