Like this study set? Create a free account to save it.

Sign up for an account

Already have a Quizlet account? .

Create an account


the substances that undergo change


new substances formed as a result

single replacement reaction

a reaction when one element takes tha place for another element

double replacement reaction

one in which two different compounds exchange positive ions and form two new compounds

combustion reaction

is one in which a substance reacts rapidly with oxygen, usually makes hea and light

oxidation-reduction reaction

a reaction in which electrons are transferred from one reactant to another

Chemical energy

the energy stored in chemical bonds of a substance

exothermic reaction

a chemical reaction that releases energy to its surroundings

endothermic reation

a chemical reaction that absorbs energy from its surroundings

reaction rate

the rate at which reactants change into products over time


substance that effects the reaction rate without being used up in the reaction


is a state in which the forward and reversepaths of a change take place at the same time

reversible reaction

is a reaction in which the conversion of reactants into products and the conversion of products into reactions can happen simultaneously

synthesis reaction

is a reaction in which two or more substances react to form a single substance

decompositon reaction

is a reaction when a compound breaks down into two or more simpler substances

molar mass

the mass of one mole


an amount of a substance that contains approximatley 6.02X10 to the 23rd power

chemical equation

is a representation of a chemical reaction where the reactants and products are expressed as formulas


the numbers that appear before a formula

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions and try again


Reload the page to try again!


Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

Voice Recording