Unit 4

1. focusing ones attention on something
3. the ratio between the amounts in moles of any two compounds involved in a balanced chemical reaction
5. lowest part of something
6. a chemical compound is defined as the ratio between the mass
8. the process in which carbon atoms continually travel from the atmosphere to the Earth and then back into the atmosphere.
9. a state in which opposing forces or influences are balanced.
10. a pigmented spot, mark, or small permanent protuberance on the human body
11. chemical that gives off hydrogen ions
13. the relationship between the weights of reactants and products before, during, and following chemical reactions

2. a reduction in the pH of the ocean over an extended period of time, caused primarily by uptake of carbon dioxide (CO2) from the atmosphere
4. a reaction in which the conversion of reactants to products and the conversion of products to reactants occur simultaneously
7. a chemical reaction in which acid and a base react with an equivalent quantity of each other.
10. the ratio between the amounts in moles of any two compounds involved in a balanced chemical reaction
12. used to specify acidity or basicity