The goal of the experiment: Explain the idea of work the Hofmann's voltameter Experiments Tools:  Hofmann's voltameter apparatus- holder- acidified water with dilute sulphuric acid- battery – glowing splint Steps of the experiment: The Observation & Conclusion:Keywords (English): Hoffman......

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

purpose of experimentAcid & base TitrationToolsHolder - Burette - Graduated cylinder (25 ml) - Hydrochloric acid - Sodium hydroxide - Glass funnel - Methyl orange.steps Fix the burette on the holder, then place the glass funnel over the burette.  Fill the burette with hydrochloric......

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

Keywords: pH – Litmus paper – Solutions – Acidic – Basic

Keywords: Equation balancing – Chemical equilibrium – Reactants – Products – Atoms

Determine what compounds

Detection of some elements using flame

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