Create an account
a representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products.
4 Indications of a chemical reaction
precipitate, change in color, increase or decrease in temperature, and/ or production of gas.
A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.
a substance that initiates or accelerates a chemical reaction without itself being affected
separation of a substance into two or more substances that may differ from each other and from the original substance
A reaction in which one element or radical takes the place of another element or radical in a compound
a reaction in which a gas, a solid precipitate, or a molecular compound forms from the apparent exchange of atoms or ions between two compounds
a chemical reaction that occurs when a substance reacts with oxygen, releasing energy in the form of heat and light
the relation between the quantities of substances that take part in a reaction or form a compound (typically a ratio of whole integers)
the sum of the average atomic masses of all the atoms represented in the formula of any molecule, formula unit, or ion
a chemical formula showing the ratio of elements in a compound rather than the total number of atoms
the relative number of moles of the substances required to produce a given amount of product in a chemical reaction
the substance that controls the quantity of product that can form in a chemical reaction
the maximum amount of product that can be produced from a given amount of reactant
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!Reload
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