Chemical reaction

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Chemistry 8 Lesson 16: Chemical Equations

Chemistry 8 Lesson 16: Chemical Equations 1. Summary of theory 1.1. Make a chemical equation a. Chemical equation The word equation for the reaction: Hydrogen + Oxygen → Water Reaction diagram: H2 + O2 → FRIENDS2O – In figure 1: If according to the reaction diagram H2 + O2 → FRIENDS2O then + Left side: …

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Chemistry 8 Lesson 15: Law of conservation of mass

Chemistry 8 Lesson 15: Law of conservation of mass 1. Summary of theory 1.1. Experiment a. How to proceed? Step 1: Place 2 beakers containing dd BaCl2 and Na2SO4 onto 1 weighing plate Step 2: Place the weights on the other weighing pan. Step 3: Pour the cup containing dd BaCl2 into a cup containing …

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Chemistry 8 Lesson 14: Exercise 3

Chemistry 8 Lesson 14: Exercise 3 1. Summary of theory 1.1. Experiment purpose – Perform dissolution and heating of potassium permanganate (potassium permanganate) – Perform the reaction with calcium hydroxide (clear lime water). – Practice skills in using tools and chemicals to successfully and safely conduct experiments 1.2. Some safety rules in the laboratory – …

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Chemistry 8 Lesson 13: Chemical Reactions

Chemistry 8 Lesson 13: Chemical Reactions 1. Summary of theory 1.1. Define Chemical reaction is the process of changing from one substance to another. The initial substance that is changed in a reaction is called the reactant or the reactant. New substances formed in a reaction are called products. Letter Equation: Name of reactants → …

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Chemistry 8 Lesson 17: Exercise 3

Chemistry 8 Lesson 17: Exercise 3 1. Summary of theory 1.1. Chemical Phenomena A chemical change is a change in which one substance produces another substance. – Chemical reaction is the process of changing from one substance to another. The initial substance that is changed in a reaction is called the reactant or the reactant. …

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