Description: The experiment aims to determine the hardness of water. Students will investigate how boiling and filtration impact the hardness of tap water by measuring its mineral content. The results will help evaluate water quality and compare the effectiveness of different purification methods.
Laboratory work #10: «Determination of water hardness» Read More »
In this laboratory work you will study the reaction of iron with acetic acid Long-term plan section Subsections of the standard curriculum Learning objectives Comparison of metal activities “Reactions of metals with acid solutions. Laboratory experiment No. 3 “Interaction of metals with acid solutions” “8.2.4.4 study the reactions of various metals with acid solutions; 8.2.2.5 draw up equations for the reactions of metals with acids”
Laboratory work #3: The reaction of metals with acids Read More »
In this laboratory work you will learn about the solubility of salts Long-term plan section Subsections of the standard curriculum Learning objectives Solutions and solubility Dissolution of substances in water. Laboratory experiment No. 5 “Study of solubility of substances” 8.3.4.1 classify substances of solubility in water; 8.3.4.2 explain the role of solutions in nature and everyday life Study of solubility of substances
In this laboratory you will learn about conservation of masses based on the example of reaction of baking soda with ac etic acid. Long-term plan section Subsections of the standard curriculum Learning objectives Formulas of substances and equations of chemical reactions Drawing up equations of chemical reactions. The law of conservation of mass of substances. Laboratory experiment No. 2 “Ratio of reacting substances” 8.2.3.2 establish experimentally the ratio of reacting substances; 8.2.3.3 to make equations of chemical reactions, writing down formulas of reagents and reaction products; 8.2.3.4 know the law of conservation of mass of substances
In this laboratory work you will learn about exothermic and endothermic reactions Long-term plan section Subsections of the standard curriculum Learning objectives Introduction to energy in chemical reactions Exothermic and endothermic reactions. Laboratory experiment No. 4 “Chemical reactions accompanied by a change in energy” 8.3.1.3 know that exothermic reactions occur with the release of heat, and endothermic reactions with the absorption of heat; 8.3.1.4 understand the effects of various fuels on the environment
Laboratory work #4: Exothermic and Endothermic reactions Read More »
Description: In this laboratory you will learn about atom theory histroy and concept. You will make the carbon atom based on all three models. Long-term plan section Subsections of the standard curriculum Learning objectives The motion of electrons in atoms Energy levels. 8.1.3.2 understand that the number of electrons at each energy level does not exceed a certain maximum value; 8.1.3.3 know the shape of s and p orbitals 8.1.3.4 be able to write electronic configurations and electronic graphic formulas of the first 20 chemical elements
