Change in matter that produces a new substance with different properties from the original
Chemical combination of two or more elements
Way of using letters and numbers to show how much of each element is in a substance
When two atoms SHARE ELECTRONS
When one atom "STEALS" an ELECTRON from another atom
Original Substances in a chemical reaction (behind arrow)
New substances formed in a chemical reaction (in front of arrow)
2 elements or compounds JOIN TOGETHER to make a new compound
A + B --> AB
A compound BREAKS APART into simpler substances
AB --> A + B
One element REPLACES another element in a compound
BX + A --> AX + B
Way of describing a substance by how it reacts chemically to other substances
pH less than 7; sour, corrosive, burns skin, wears away metal
Grapefruits, lemons, battery acid, vinegar
pH greater than 7; bitter, usually poisonous, dissolves hair, wool, and grease
Drain cleaner, shampoo, bathtub cleaner
Chemical reactions that ABSORB ENERGY
Chemical reactions that GIVE OFF HEAT
Hydrogen and Oxygen
2 atoms (elements) that make up a molecule of water
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.