The smallest unit of matter
The idea that matter is composed of atoms
A system of philosophy that dealt with the mystery of life and the formation of inanimate substances.
The study of matter and its composition
the first person to theorize about atoms
The separation of a substance to determine its composition
The new substances involves in a chemical reaction
Any substances involved in a chemical reaction
A compound that can be broken down into smaller parts
Combining of parts of elements to form a compound.
Words represent the chemicals in a chemical equation.
A symbolic representation of a chemical reaction using chemical formulas.
Any number of substances that makes up a chemical system.
Conservation of Mass
In a chemical reaction, mass is neither created nor destroyed, in it conserved.
Pure substances have fixes dimensions.
Number of products in a chemical reaction equals the number of reactants.
When one or more things change into new substances
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.