Partner\'s Name: Michelangelo Instructors initials: Part A Combination Reactions
ID: 500523 • Letter: P
Question
Partner's Name: Michelangelo Instructors initials: Part A Combination Reactions: 1) Get a Bunsen burner, a pair of crucible tongs, and a clean dry evaporating dish. Take about a 1 inch piece of magnesium metal, grasp it with metal tongs and hold it into a Bunsen burner flame. When the metal ignites, place the burning metal into an evaporating dish to collect the compound that forms. Be careful not to look at the burning magnesium once it ignites! Also be careful not to perform this reaction under the smoke detectors that are in the lab room! Evidence of a chemical reaction. Ignited w unite flash E tuured white bunny Balanced Chemical Equation: 2) Take the evaporating dish with the product from the previous step and add deionized water to it. Then add a couple of drops of universal indicator. Note the color of the indicator and decide what reaction has taken place. What does the color of the universal indicator tell? It turned totae te blue wNicu cu Cut es thout H is basic Balanced Chemical Equation:Explanation / Answer
1) White flases are formed after burning
Mg (s) + O2 (g) -----> MgO (s)
2) It is turned to blue colour so it is basic in nature
MgO (s) + H2O (l) -----> Mg(OH)2 (aq)
3) It is turned to purple colour so it is basic in nature
CaO (s) + H2O (l) -----> Ca(OH)2 (aq)
5) Burning of Zn metal with acid produces colurless Hydrogen gas
Zn (s) + 2 HCl (l) ------> ZnCl2 (aq) + H2 (g)
6) HCl (l) + NH3 (g) ------> NH4Cl (s)