Tuesday, October 12, 2010

Science 9/27/10

Bell Question: Is cooking a piece of chicken on the BBQ a chemical of physical change? Why of why not?
- It would be a chemical change because it is creating a new product by smell, color, exothermic reaction, etc.

Molecule- the simplest part of a compound that is still a compound.

Density does NOT equal weight!

-Everything has an equilibrium density. They all want to be at their own equilibrium density.
Solution- a homogeneous combination of matter

Solute- what you put in the material. Generally the solid.
Solvent- the liquid you put in the material (water is universal solvent)

Unsaturated- not enough solute to fill in the spaces of the sovent
Saturated- just enough to fill in all the spaces in the solvent (under normal conditions)
Supersaturated- more solute that the solvent can handle (under normal conditions)

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