Which of the following is a physical change?
A) burning coal
B) synthesis of methane from carbon and hydrogen
C) smoking a cigarette
D) filtering muddy water
Correct Answer:
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Q11: Which of the following is a chemical
Q12: When a substance undergoes a chemical change
Q13: Which of the following is not a
Q14: Which of the following represents a physical
Q15: Which of the following is a chemical
Q17: The condensation of steam is an example
Q18: Which response includes all of the following
Q19: As two liquid solutions are added together,
Q20: Which response contains all of the following
Q21: Which answer includes all of the following
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