Keywords: Ammonia – Hydrogen chloride – White vapor – Gas combination

Keywords: Nonmetals – Oxygen – Combustion – Nonmetal oxides

Purpose of experiment Preparation of oxygen gas in the laboratory Toolsglass beaker - two-hole cork stopper - glass spout funnel - glass delivery tube - basin - water - graduated flask - hydrogen peroxide solution (oxygen water) - manganese dioxide.StepsBring the glass basin and install th......

Purpose of experimentPreparation of carbon dioxide gas in the laboratorytoolsgraduated flask - glass beaker - cork stopper with two holes - glass funnelU-shaped glass tube - dilute hydrochloric acid - calcium carbonatesteps Place the candle in the middle of the lab bench.Light the candle by usi......

Objective of the experiment:Detection of carbon dioxide gas during plant respirationExperiment tools: bean seeds - jar - water sprayer - cotton - test tube with clear lime water -plastic tube - clayExperiment steps:- Put the cotton in the jar.- Spray water on the cotton with a water sprayer.- P......

Keywords: Chemical properties – Metals – Oxidation – Oxides

Keywords: Boyle’s law – Pressure – Volume – Gases – Inverse relationship

the goal:Determine the value of atmospheric pressure using a mercury barometer.Materials and tools:tube 90 cm - basin - mercury - glass plate - holderSteps:1) Fill the test tube and the glass bowl with mercury.2) Drop the test tube in the pelvis and note what happens. Note:The drop in the level......

Manometer deviceKeywords (English): manometer – pressure measurement – gas pressure

Keywords: Molar volume – Avogadro’s number – Gases – Ideal gas law – Measurement

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......

Determine the molar ratiomole ratio – moles – stoichiometry – chemical reaction

Keywords: Nitrogen gas – Preparation – Reaction – Products – Laboratory

Keywords: Nitrogen – Salts – Chemical reaction – Analysis

Keywords: Nitrogen gas – Preparation – Reaction – Products – Laboratory

Keywords: Ammonia gas – Ammonia – Preparation apparatus – Odors – Bases

Objective: To prove that gases have volume and occupy spaceMaterials: Two equal balloons – two rulers – 15 cm strings – a heavy book – adhesive tape – clips – scissorsSteps: Inflate both balloons to the same size and tie them tightly Cut three pieces of string Tie both balloons to one ruler evenly o......