Lab+-+Chemical+Reactions+I

Name: Date: 8th Grade Science -STEM Middle Academy – Mr. Condon Block: Lab – Chemical Reactions I

Procedure:
 * 1) Gather Materials: 100ml with Acetic Acid (HCH3CO2), eye dropper, small measuring cup.
 * 2) Fill measuring cup with a small amount of Sodium Chloride (NaCl).
 * 3) Add 5 drops of Acetic Acid.
 * 4) Record any change – bubbling, flames, color change, etc.
 * 5) Repeat procedure with Potassium Carbonate (K2CO3)
 * 6) Repeat procedure with Calcium Carbonate (CaCO3)
 * 7) Repeat procedure with Calcium Hydroxide (Ca(OH)2)
 * 8) Repeat procedure with Sodium Bicarbonate (NaHCO3)

Data: (HCH3CO2) ||  ||   ||   ||   ||   ||
 * || Sodium Chloride (NaCl) || Potassium Carbonate (K2CO3) || Calcium Carbonate (CaCO3) || Calcium Hydroxide (Ca(OH)2) || Sodium Bicarbonate (NaHCO3) ||
 * Record of any reaction with Acetic Acid

Analysis:
 * 1) Which chemical reacted with Acetic Acid?


 * 1) Look carefully at the chemical formulas for the chemicals that reacted with acetic acid. Do they have anything in common?


 * 1) Sodium (Na), Potassium (K) and Calcium (Ca) have which type of valance electrons?   They are members of which groups in the Periodic Table?  and


 * 1) Acids are chemicals that release Hydrogen ions easily. Predict what would happen if you used Hydrochloric Acid instead of Acetic Acid in the above procedure.