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Which of the following is a correct observation for a chemical change?a)The process is always reversible.b)A new substance is formed.c)No energy change occurs.d)The composition remains unchanged.Correct answer is option 'B'. Can you explain this answer? for Grade 7 2024 is part of Grade 7 preparation. The Question and answers have been prepared according to the Grade 7 exam syllabus. Information about Which of the following is a correct observation for a chemical change?a)The process is always reversible.b)A new substance is formed.c)No energy change occurs.d)The composition remains unchanged.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Grade 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is a correct observation for a chemical change?a)The process is always reversible.b)A new substance is formed.c)No energy change occurs.d)The composition remains unchanged.Correct answer is option 'B'. Can you explain this answer?.

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