metals with the most activity to the least activity. The following metals are ranked from most or lots of activity to least or no activity: 1) Magnesium (Mg) 2) Zinc (Zn) 3) Iron (Fe) 4) Copper (Cu) Magnesium (Mg)‚ Zinc (Zn)‚ Iron (Fe)‚ and Copper (Cu). 2) Reactions for Zinc: Zn + HCl = ZnCl2 + H2 (unbalanced) Zn + 2 HCl = ZnCl2 + H2 (balanced) zinc + hydrochloric acid = zinc chloride + hydrogen (name of
Premium Sulfuric acid Zinc Hydrochloric acid
equation 2K + 2H2O 2KOH + H2 Table 8.6- Chemical reaction of copper strip and 4 mL silver nitrate Observations Precipitate formed on copper strip; precipitate was greenish brown in color. Reactants: Cu and AgNO3 Products: Cu(NO3)2 and Ag Balanced chemical equation 2AgNO3 + Cu Cu(NO3)2
Premium Chemical reaction Carbon dioxide Sulfuric acid
CHAPTER 8: ACID – BASE EQUILIBRIUM 4 U CHEMISTRY P 526 – SEE KEY IDEAS - examples f acids and bases. 8.1: The Nature of Acid – Base Equilibria: - Arrhenius acids – H ions in water‚ bases – hydroxide ions in water - acids – sour‚ turn blue litmus to red (pink)‚ conduct electricity - bases – bitter‚ soapy taste‚ slippery‚ conduct electricity‚ turn red litmus to blue Bronsted – Lowry Theory: - acids – donate proton‚ bases accept proton - ex: HCl donates proton to water
Premium Acid PH Acid dissociation constant
displacement reaction between zinc powder and copper (II) sulphate solution. Zn (s) + Cu2+ (aq) → Cu2+ (s) + Zn2+ (aq) Theory: For the displacement reaction‚ an excess amount of zinc powder is added to the measured amount of aqueous copper (II) sulphate. The temperature change over a period of time has to be measured and thus‚ the enthalpy change for the reaction can be measured. The equation of the above reaction is: Zn (s) + Cu2+ (aq) → Cu2+ (s) + Zn2+ (aq) Apparatus: * * Safety spectacles
Premium Zinc Thermodynamics
* Copyright: The McGraw-Hill Companies‚ Inc. Oxidation-Reduction Reactions*Zn (s) + CuSO4 (aq) ZnSO4 (aq) + Cu (s) Zn is oxidized‚ Zn Zn2+ + 2e- Cu2+ is reduced‚ Cu2+ + 2e- Cu Zn is the reducing agent Cu2+ is the oxidizing agent Copper wire reacts with silver nitrate to form silver metal. What is the oxidizing agent in the reaction? Cu (s) + 2AgNO3 (aq) Cu(NO3)2 (aq) + 2Ag (s) Cu Cu2+ + 2e- Ag+ + 1e- Ag Ag+ is reduced‚ Ag+ is the oxidizing agentOxidation
Premium Titration Oxidizing agent Potassium permanganate
solubility guidelines ‚ predict whether each of the following compounds is soluble or insoluble in water. a. MgBr2 d. Sr(OH)2 b. PbI2 e. ZnSO4 c. (NH4)2CO3 5. (Brown 4.20 w/ additional) Predict whether each of the following compounds is soluble in water: a. AgI f. Sr(NO3)2 b. Na2CO3 g. CuSO4 c. BaCl2 h. CuCl2 d. Al(OH)3 g. PbS e. Zn(CH3COO)2 6. Complete the following double replacement (exchange ) reactions. Be sure to balance them. a. MgCl2 + Ba(NO3)2 → b. Al2(CrO4)3
Premium Hydrochloric acid Acetic acid Sulfuric acid
1. Place a small scoop of NaHCO3 in a test tube 2. Add 5 mL of HC2H3O2 to the same test tube 3. Record Observations 4. Clean workstation * Workstation 6: 1. Add a small piece of zinc into a test tube 2. Add about 5 mL of CuSO4 to the same test tube 3. Observe the reaction for 2-3 minutes 4. Record Observation 5. Clean workstation * Workstation 7: 1. Combine 5-8 drops of AgNO3 and CaCl2 in a test tube 2. Observe reaction for 2-3 minutes 3. Record
Premium Chemical reaction Sodium Sodium chloride
Source 1 Hotbox Food would like to present a line of delicious beverages in completely self heating cans. Thanks to these innovative containers called “Hotshots”‚ it is now possible to drink high quality beverages at any time and at any place. Neither an external heat source‚ nor any other cooking utensils are required. Drinks 2go recipes do not contain additives‚ preservatives‚ artificial colorings or any raw materials obtained from GMO (Genetically Modified Organisms). Source 2 In one version
Premium Management Marketing Balance sheet
of substances produced in a chemical reaction. Materials: Safety Goggles Stirring rod Magnesium ribbon Solid CuSO4•H2O Matches Test tubes Copper metal 3M HCl Red and blue litmus strips 0.1M AgNO3 Zinc metal 0.1M Pb(NO3)2 Test tube holder 0.1M KI Bunsen burner 0.1M Na2NO3 Crucible tongs 1.0M NaOH Water (H2O) 0.1M Ca(NO3)2 50mL beaker 1.0 CuSO4 Procedure: Using the crucible tongs‚ take a magnesium strip and hold it in hot spot (just above the inner cone of
Premium Chemical reaction
Know Know the reaction equations‚ which reactions occur (ex. by heating‚ etc.) and physical descriptions/color of tings Ex. CuO (s) (black solid) + H2SO4 (aq) + H2O --> Cu(SO)4 (aq) (blue solution) + H2O Know how to calculate percent yield (i.e. CuSO4 was obtained from the reaction of CuO with sulfuric acid. If 2.5 g of CuSO4 was obtained from 5.0 g of CuO‚ what is the percent yield?) Purpose To observe the chemical properties of copper through a series of reactions To recover the original
Premium Acid