Unit one: chemical reactions.  Lesson one: chemical reactions.Objective: To study the thermal decomposition of copper sulfate.Materials: Copper sulfate _ Spoon _ Bunsen burner _ Test tubeSteps: Heat a small amount of blue copper sulfate in a test tube using a Bunsen burner.Observation: A black......

Unit one: chemical reactions.  Lesson one: chemical reactions.Keywords (English): thermal decomposition – sodium nitrate – heat – oxides – thermal reaction

An experiment demonstrating the difference between electrolytic and non-electrolytic solutions by testing their ability to conduct electric current using a simple electrical circuit and observing the brightness of a lamp.Keywords: Electrolytic Solutions - Non-Electrolytic Solutions - Electrical Cond......

Keywords: Periodic table – Elements – Groups – Periods – Classification

the goal:Learning how to prepare ester.Materials and tools: Electric heater - Glass cup - Test tube - Salicylic acid - Methanol - Sulfuric acid - Cotton - SpoonSteps:1. Fill the glass with water and heat it on the electric heater to the mid-level temperature.2. Weigh 1.5 grams of salicylic acid......

Keywords: Galvanic cell – Cell voltage – Electrodes – Electrons – Voltage

Investigation of the process of electrolysis of waterelectrolysis of water – oxygen – hydrogen – electric current

Objective: To detect the presence of proteins in a sample using the Biuret reagentMaterials: Test tubes _ Test tube rack _ Egg white _ Glucose solution _ Starch solution _ Distilled water _ Biuret reagent _ DropperSteps: Prepare 4 test tubes and place in each one: egg white, glucose, starch, or dist......

Three states of matterThis experiment shows how water changes between its three states due to temperature. Ice melts when heated to become liquid water, then turns into vapor with continued heating. When the vapor touches a cold surface, it condenses back into water droplets.states of matter – solid......

Keywords: Solubility product – Sparingly soluble salts – Equilibrium – Solutions – Comparison

Keywords: Alcohols – Functional groups – Combustion – Solubility – Bonds

Keywords: Nitrogen – Salts – Chemical reaction – Analysis

Keywords: Chromatography – Separation – Colors – Adsorption – Analysis

Keywords: Physical state change – Melting – Freezing – Evaporation – Condensation

Objective To determine the concentration of an unknown solution through an acid-base reaction using the equivalence point.Tools Beaker – burette – burette stand – unknown acid or base solution – standard solution of known concentration – suitable indicator – graduated cylinderSteps Place a measured......

Objective: To study a spontaneous redox reaction between zinc metal and copper sulfate solutionMaterials: Zinc plate _ Copper sulfate solution CuSO4 _ Glass beaker _ Forceps _ Glass rodSteps: Pour copper sulfate solution into a beaker Immerse the zinc plate in the solution Observe the surface and co......

Objective: Study the oxidation of ethanol.Materials: Test tube 10 mL _ Water bath _ Ethanol _ Acidified potassium dichromate solution (orange in color)Steps: Place 3 mL of ethanol in a test tube. Add an equal amount of acidified potassium dichromate solution. Heat the mixture in a water bath for 10......