A change that occurs when two substances react to produce entirely different substances.
chemical equation (balanced)
An equation with an equal number of atoms in the reactants and products.
A representation of a compound that includes the symbols and numbers of atoms in the compound.
The breaking of bonds to form new substances.
The "6" in 6H2O
A bond between atoms in which electrons are shared.
The substance produced in a chemical reaction.
A substance that enters into and is changed during a chemical reaction.
An atom that has an electrical charge because it gained or lost an electron.
A bond between atoms in which electrons are lost or gained.
law of conservation of mass
You cannot create or lose mass in a reaction.
Most atoms need eight valence electrons to be stable.
A number that indicates how many electrons will be gained or lost during bonding.
Ice melting is an example of this kind of change.
An ion like CO3 or OH
A chemical reaction in which energy is released.
A chemical reaction in which energy is required.
A reaction that involves splitting the nucleus of an atom or fusing 2 nuclei to make a new atom.
The process of combining the nuclei of atoms to make different atoms.
Breaking up the nucleus of an atom.
Please allow access to your computer’s microphone to use Voice Recording.
We can’t access your microphone!
Click the icon above to update your browser permissions above 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.
Your microphone is muted
For help fixing this issue, see this FAQ.