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Three Major Types Of Chemical Reaction Essay

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12. The formula C6H12O6 means __________. (p. 46) The formula C6H12O6 means that there are 6 carbon, 12 hydrogen, and 6 oxygen atoms.
13. Three major types of chemical reactions are __________, __________, and __________. (p. 47) Three major types of chemical reaction are the ionic bond, covalent bond, and hydrogen bond.
14. Explain what a reversible reaction is. (pg. 47) A reversible reaction is a chemical reaction in which the products react, reforming the reactants. The end product (or products) of the reaction can be changed back to the reactant (or reactants) that originally underneath the reaction.
15. Define catalyst. (p. 47) A catalyst is a chemical that increases the rate of a chemical reaction but is not permanently altered by the reaction.
16. Define acid and base. (p. 47) Acids are electrolytes that release hydrogen ions (H+) in water. Bases are electrolytes that release ions that bond with hydrogen ions.
17. Explain what pH measures, and describe the pH scale (p. 48) The pH scale measures the concentration of hydrogen ions found in substances. This system tracks the number of decimal places in a hydrogen ion concentration without writing them out. Each whole number on the pH scale (0-14) represents a tenfold difference in hydrogen ion concentration. (1) When the hydrogen ion concentration increases, the pH number decreases. (2) When the hydrogen ion concentration decreases, the pH number increases.
18. Define buffer. Buffers are chemicals that resist pH

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