Physical changes occur when there is a change in state but no new chemicals are produced.
Chemical changes are when new chemicals are being produced.
As you can see in the second picture there are little solids floating in the mixture.
9.18.2011
Physical / Chemical Changes
We learned about the physicals and chemical changes.
Physical changes occur when there is a change in state but no new chemicals are produced.
-example melting, cutting, evaporation.
Chemical changes are when new chemicals are being produced.
An example in class is when potassiam iodide and lead nitrate is mixed, (both clear and transparent like water in sight) this is what happened:
As you can see in the second picture there are little solids floating in the mixture.
Physical changes occur when there is a change in state but no new chemicals are produced.
Chemical changes are when new chemicals are being produced.
As you can see in the second picture there are little solids floating in the mixture.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment