Which of the following is true of ice when it melts to form liquid water?
A) A physical change occurs.
B) A chemical change occurs.
C) Both physical and chemical changes occur.
D) The number of molecules of water increases.
E) The number of molecules of water decreases.
Correct Answer:
Verified
Q22: A substance composed of two or more
Q23: What does the figure represent?
Q24: The simplest form of a substance is
Q25: Which of these substances are compounds?
I. Neon
II.
Q26: Which of these are pure substances?
I. Steam
II.
Q28: Which of these statements is true?
A) Solids
Q29: The smallest unit of a chemical compound
Q30: Which of these statements is true?
A) The
Q31: Which of these substances are heterogeneous mixtures?
I.
Q32: A bowl of chocolate chip ice cream
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