Monday, October 11, 2010

Acids, Bases and The pH Scale

I learned that on the pH Scale the acidity levels are backwards from how we normally see them, meaning the highest acidity level is 1 and the lowest (the bases) is 14.
What I Know:

1. What is neutral on the pH Scale?
Water, Milk. Anything lower than 7 is acidic and anything higher than 7 is basic.

2. Why is Water neutral?
Water is neutral because it has an equal balance of Hydrogen and Hydroxide atoms.

3. What dissolves more substances? Water or Acid?
Because water contains air it is always slightly acidic, consequently it dissolves more substances than acid.

Dead Simple Way To See Atomic Structure

In the article, they used a sheet of carbon one atom thick to view how water sticks to every surface. Heath, a professor of chemestry in California, and his colleagues found a way to pin down moving molecules by using Graphene (it's like chicken wire on an atomic scale). They found that is hugged the water molecules so tightly that they could see the atomic structure. The researchers have tested many other molecules and haven't found one that Graphene does not work on.

Friday, October 8, 2010

Concept Map! Carbohydrates!!

Concept Map on Carbohydrates