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NDA / Chemistry 🧪 Lesson 01 PHYSICAL AND CHEMICAL CHANGES. practice exercise 4 1. Which of the following represent both physical and chemical change…
Read moreNDA / Chemistry 🧪 Lesson 01 PHYSICAL AND CHEMICAL CHANGES. practice exercise 1. Which of the following is a chemical change? (a, Evaporation (c) S…
Read moreNDA / Chemistry 🧪 Lesson 01 PHYSICAL AND CHEMICAL CHANGES. Generally 1-2 questions are asked from this chapter. Question…
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