Which of the following is a physical change?
A) the freezing of water to form ice
B) the burning of paper
C) the sodium metal reacts vigorously with water
D) the reaction of zinc with hydrochloric acid
E) the inability of gold to react with water
Correct Answer:
Verified
Q11: On a very cold day in Alaska,the
Q12: The scientific method is used to make
Q13: An intensive property is dependent of the
Q14: A physical property is:
A)the ability of a
Q15: Choose the INCORRECT statement.
A)A natural law is
Q17: A theory is a model used to
Q18: The composition refers to the components of
Q19: Which of the following is a chemical
Q20: Systematic errors are consequence of inherent errors
Q21: Which of the following is a compound?
A)water
B)oxygen
C)heat
D)salad
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