properties that don't involve changes in composition
physical state of a substance depends on this
substance that changes to a gas easily at room temperature
amount of matter contained in a unit of volume
properties that can be observed only when there is a change in the composition of a substance
a substance's tendency to break down into different substances
law of conservation of mass
states that in a chemical change matter is neither created nor destroyed
the capacity to do work
chemical reactions that give off heat energy
chemical reactions that absorb heat energy
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 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.