reactions Flashcards
what is a catalyst
Speed up the rate of the reaction by lowering the amount of energy needed to get it started (activation energy)
what does increasing the concentration do to a reaction
Increasing the concentration of one of the reactants will increase the speed of the reaction
what does decreasing the temperature do to a reaction
Lowering the temperature slows down the reaction
what are ways to change the rate of a reaction
temperature, surface area, catalysts, inhibitors, and concentration
what does increasing the surface area do to the rate of a reaction
Increasing the surface speeds up the reaction
what do inhibitors do
slow down the rate of the reaction
what is on the left side of a chemical equation
the reactants
can you add/change a subscript
no
what is the right side of a chemical equation
the products
what can you change in a chemical equation to balance it out
the coefficients
what is a decomposition reaction
One element breaks up into two or more parts
what happens when you decrease the surface area
the reaction slows down
what happens when you increase the temperature
the reaction speeds up
what is a synthesis reaction
Two elements or compounds come together to form one compound
what happens when you decrease the concentration
the reaction slows down
does decreasing something in a chemical reaction slow down or speed it up
slow it down
what is a replacement reaction
Elements on the reactants side recombine on the product side.
how do you find the number of atoms on one side of the reaction
you use the subscript and if there is a coefficient you multiply the coefficient by the subscript.
how do you say the arrow in a chemical equation
the reactants yield the products
the law of conservation of mass is
the mass of the reactants is equal to the the mass of the products
