Which one of the following statements is not correct?
A) Dry ice subliming is a physical change.
B) Methanol burning is a chemical reaction.
C) Sugar dissolving in water is a physical change.
D) Bleaching your hair is a chemical change (reaction) , even though it changes your physical appearance.
E) Liquid water turning into steam is a chemical reaction.
Correct Answer:
Verified
Q16: Which of the following is a pure
Q17: Which of the following is an element?
A)Cl2
B)H2O
C)NaCl
D)MgO
E)HCl
Q18: Which of the following is not a
Q19: Which one of the following is not
Q20: Which of the following depicts a heterogeneous
Q22: Which of the following is not a
Q23: The law of constant composition states that
Q24: Atoms are to molecules as _
A)a country
Q25: Which technique would allow separation of the
Q26: Which of the following mixtures can be
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