Unit one: chemical reactions. Lesson one: chemical reactions.Keywords (English): mercury oxide – thermal decomposition – mercury – oxygen

Unit one: chemical reactions. Lesson one: chemical reactions.Keywords (English): copper hydroxide – thermal decomposition – heating – oxides

Unit one: chemical reactions. Lesson one: chemical reactions.Keywords (English): copper carbonate – heating – decomposition – carbon dioxide

Unit one: chemical reactions.  Lesson one: chemical reactions.Keywords (English): copper sulfate – thermal decomposition – oxides – color change

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

Unit one: chemical reactions. Lesson one: chemical reactions.Keywords (English): hydrochloric acid – sodium carbonate – carbon dioxide – gas bubbles

Unit one: chemical reactions. Lesson one: chemical reactions.Keywords (English): silver nitrate – sodium chloride – white precipitate – precipitation reaction

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......

Writing and weighing chemical equations

The reaction of metals with dilute acids

Discovering the chemical properties of metals (reaction of metals with oxygen)objectiveUnderstanding the interaction of metals with oxygenToolsA strip of magnesium - Tester filled with oxygen- litmus- A glass of water- holderstepsApply the tester filled with oxygen in the middle of the deskHeat the......

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......

Formation of SaltKeywords (English): salt formation – ionic reaction – crystallization

What happens when iron reacts with copper sulphate (introductory experiment)

Preparation of nitrogen gas in the laboratory

Preparation of nitrogen gas from chemical compounds

Preparation of nitric acid in the laboratory.

Nitrogen Gas Preparation Apparatus