What is an acid? Give some examples.
What is a base? Give some examples.
Explain the pH scale.
What is an endothermic reaction? Give some examples.
What is an exothermic reaction? Give some examples
What is a "neutrally-charged" atom?
What are the vertical cloumns within a periodic table called? What are the characteristics of elements in the same column?
What are some common names of the various groups of elements? Where are these groups located within the periodic table?