Reactants Lab Essay

facial gesture 1 Problem What subject of chemical responses slip bys when different reactants are sundry(a)?Variables Manipulated Combination of reactantsResponding Type of chemical ReactionControlled 1. Same amount of reactants used (1 piece for solids, 4 drops for placids)2. Spot plate is washed before reactants are mixed3. Same amount of time substance is allowed for chemical reaction to occur (15s)4. Because data is qualitative, manifestations leave be made by the same person. looking at 2 Controlling Variables The same amount of reactants being used allow be controlled by using the same amount of reactants in individually reaction (1 piece for solids, 4 drops for liquids).Spot plate entrust be washed before each chemical reaction (using the piddle from the squeeze bottle) to ensure no residue is left from previous reaction.Observations result be made 15 seconds after the chemical raction. Time leave behind be kept using a watch.The same person will make qualitativ e observations, to ensure that observations are kept consistent.Aspect 3 Materials Spot Plate Forceps Squeeze Bottle filled with water Toothpick key out of ReactantsFig. 1.1Reactant chemical Formulaaluminum (s)Al (s)copper (II) chloride (aq)CuCl2 (aq)barium hydroxide (aq)Ba(OH)2 (aq)sulphuric pungent (aq)H2SO4 (aq)chlorine (aq)Cl2 (aq)sodium bromide (aq)NaBr (aq)zinc (s)Zn (s)copper (II) sulphate (aq)CuSO4 (aq)hydrochloric acid (aq)HCl (aq) milligram hydroxide (aq)Mg(OH)2 (aq) atomic number 20 chloride (aq)CaCl2 (aq)sodium carbonate (aq)Na2CO3 (aq)calcium (s)Ca (s)water (l)H2O (l)sodium acetate rayon (aq)C2H3NaO2 (aq)magnesium (s)Mg (s)sodium hydroxide (aq)NaOH (aq)cobalt chloride (aq)CoCl2 (aq)List of chemic ReactionsFig. 1.2Reactant 1Reactant 2sulphuric acid (aq)barium hydroxide (aq)hydrochloric acid (aq)magnesium hydroxide (aq)calcium (s)water (l)hydrochloric acid (aq)sodium acetate (aqzinc (s)copper (II) sulphate (aq)cobalt chloride (aq)sodium hydroxide (aq)magnesium (s)hydr ochloric acid (aq)sodium bromide (aq)chlorine (aq)aluminum (s)copper (II) chloride (aq) use1. Wash spot plate thoroughly with water from squeeze bottle.2. look at a combination of reactants from Fig. 1.13. Write down physical properties of reactants.4. Mix reactants. commemorate observations.5. Wash spot plate thoroughly, making sure reactants fall into a waste bucket.6. Repeat steps 1-4 using all the other combinations data Collection and Processing (DCP)Aspect 1 Observation chart of Chemical ReactionsFig. 1.3Reactant 1Chemical FormulaReactant 2Chemical FormulaPr-reaction observationPost-reaction observationsulphuric acid (aq)H2SO4 (aq)barium hydroxide (aq)Ba(OH)2 (aq)Two plain liquidsMilky-white substance. botch bubbles formula.hydrochloric acid (aq)HCl (aq)magnesium hydroxide (aq)Mg(OH)2 (aq) aboveboard liquidsTransparent liquidhydrochloric acid (aq)HCl (aq)sodium acetate (aq)C2H3NaO2 (aq)Transparent liquidsTransparent liquidcalcium (s)Ca (s)water (l)H2O (l)Flaky-white soli d, and transparent liquidCalcium dissolves a bit in water. A few gas bubbleszinc (s)Zn (s)copper (II) sulphate (aq)CuSO4 (aq)Grey rocky solid, with bluish liquidGas bubbles form on zinccobalt chloride (aq)CoCl2 (aq)magnesium hydroxide (aq)Mg(OH)2 (aq) carmine liquid and clear liquidPinkish-purple substance. Gas bubbles formmagnesium (s)Mg (s)hydrochloric acid (aq)HCl (aq)Silver, lustrous metal and transparent liquidGas bubbles form on magnesiumsodium bromide (aq)NaBr (aq)chlorine (aq)Cl2 (aq)Transparent liquidsTransparent liquidaluminum (s)Al (s)copper (II) chloride (aq)CuCl2 (aq)Lustrous rock and muddy liquidGas bubbles form on aluminumAspect 2 Processing DataChemical Reactants and Products Equations BalancedH2SO4(aq) + Ba(OH)2(aq) BaSO4(s) + 2HO2(l)( forficate substitution Reaction)Mg(OH)2 (s) + 2 HCl (aq) MgCl2 (s) + 2H2O (l)(Neutralization Reaction)NaC2H3O2 (aq) + HCl (aq) HC2H3O2 (aq) + NaCl (aq) (Double surrogate Reaction)Ca (s) + 2HOH (l) Ca(OH)2 (aq) + H2(g)( wizard exchange Reaction)CuSO4 (aq) + Zn (s) ZnSO4 (aq) + Cu (s)(Single Replacement Reaction)CoCl2 (aq) + 2NaOH (aq) 2 NaCl (aq) + Co(OH)2 (aq)(Double Replacement Reaction)Mg (s) + 2HCl (aq) MgCl2 (aq) + H2 (s)(Single Replacement Reaction)Cl2 (aq) + 2NaBr (aq) 2NaCl (aq) + Br2 (l) (Single Replacement Reaction)2Al (s) + 3CuCl2 (aq) 2AlCl3 (aq) + 3Cu (s) (Single Replacement Reaction)Aspect 3 Reactants, Products, and Types of Reaction ChartReactant 1Reactant 2ProductType of ReactionH2SO4(aq)Ba(OH)2(aq)BaSO4(s) + HO2(l)Double ReplacementMg(OH)2 (s)HCl (aq)MgCl2 (s) + H2O (l)Neutralization ReactionNaC2H3O2 (aq)HCl (aq)HC2H3O2 (aq) + NaCl (aq)Double ReplacementCa (s)HOH (l)Ca(OH)2 (aq) + H2(g)Single ReplacementCuSO4 (aq)Zn (s)ZnSO4 (aq) + Cu (s)Single ReplacementCoCl2 (aq)NaOH (aqNaCl (aq) + Co(OH)2 (aq)Double ReplacementMg (s)HCl (aq)MgCl2 (aq) + H2 (s)Single ReplacementCl2 (aq)NaBr (aq)2NaCl (aq) + Br2 (l)Single ReplacementAl (s)CuCl2 (aq)AlCl3 (aq) + Cu (s)Single Replacement remnant and E valuation (CE)Aspect 1 Conclusion In this experiment we discovered three types of chemical reactions, Single and Double Replacement reactions, along with Neutralization Reaction. Referring to Data in Aspect 2 & 3 of Data Collection and Processing, we can see there were 5 single replacement reactions, and 4 double replacement reactions (one of which was a neutralization reaction reaction). The reactions involving an element and a compound were all single replacement reactions, and the reaction involving two compounds were double replacements (which included a neutralization reaction).Aspect 2 Evaluate the Procedure A problem with this procedure is that it doesnt explore all types of chemical reactions. Also, try as one may, it is sometimes onerous to get the residue of a substance off the spot plate. This tampers with results.Aspect 3 Improving Experimental Design A few much reactions should be added where simple composition and decomposition are shown. Also, using the bunsen bu rner, a reaction should be added where hydrocarbon combustion is shown.Disposable spot plates should be used, to ensure that residue left by previous reactants and reactions, do non tamper with results.