Types Of Chemical Rxn Essay Research Paper

Types Of Chemical Rxn Essay, Research Paper

I

Purpose: Observe chemical reactions and ID reactants and merchandises of the reactions.

Classify the reactions and compose balanced Equations.

Two

Theoretical Background: A chemical reaction is a what happens to constituents that

causes a physical alteration.

Three

Hypothesis: You can find a chemical rxn by the physical alteration that takes topographic point.

Four

( A ) Equipment: Burner, wood splints, crucible tongs, microspatula, trial tubings 7,

trial tubing holder, trial tubing rack, emery paper, vaporizing dish, safety goggles,

lab apron or coat.

( B ) Material: Zn, Cu, Mg, CuCO3, HCl, CuSO4, Zn ( C2H3O2 ) 2, Na3PO4, Na2SO3.

Volt

Procedure:

1. Use Sandpaper to clean the Cu.

2. Keep the Cu with the crucible tongs in the hotest portion of the fire for about 2 proceedingss.

Note the alteration in the Cu.

3. Put an vaporizing dish near the base of the burner, and with crucible tongs put a

piece of Mg in the fire and do non look at the fire.

4. Topographic point 2 heaping microspatulas of CuCO3 in a trial tubing. note visual aspect.

5. Put trial tubing over the fire for 3 proceedingss and CO2 will now be present.

6. Put HCl and Zn in a trial tubing. Note alterations.

7. Keep a trial bath

vitamin E over the trial tubing with the HCl and the Zn. After 30 seconds put a

firing wood splint in the trial tubing, a dad will bespeak the presence of H gas.

8. Add about 5ml of CuSO4 in a clean new trial tubing. Put a piece of Zn in the solution.

Note visual aspect of solution before and after Zn is in the tubing.

9. Add 2ml of ( Zn ( C2H3O2 ) 2 ) to a new trial tubing. Then add about 2ml of Na2PO3 to the

trial tubing. Observe Changes.

10. Add about 5ml of Na2SO3 to a new trial tubing. Then add about 1ml of 6 M HCl. Smell,

but non straight.

Six

Observations:

On measure two the Cu turned black when in the fire. After the Mg would flame up in the

fire, the Mg turned to ashes. The CuCO3 was a white pulverization, and after it was in the

fire CO2 was present and the CuCO3 turned black. the Zn and HCl started to bubble

and their was a dad bespeaking Hydrogen gas. The Zinc turned black and the clear CuSO4

became green. The ( Zn ( C2H3O2 ) 2 ) , and the Na2PO3 became cloudy white. In shutting I

could non Smell the Na2SO3, and the HCl.

Eight

Chemical Chemical reaction:

Their were many Chemical Rxn in this lab and are stated in the observations.

Nine

Mentions:

The Paper given during the category.

Ten

Decisions: