Chemistry

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- 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?

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