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Which statement describes a physical change? A. Sodium metal reacts explosively with oxygen. B. Lead is heated and becomes more viscous. C. Calcium is added to acid and hydrogen gas is produced. D. Iron
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Dec 23, 2018
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Which statement describes a physical change?
A.
Sodium metal reacts explosively with oxygen.
B.
Lead is heated and becomes more viscous.
C.
Calcium is added to acid and hydrogen gas is produced.
D.
Iron combines with oxygen to form rust.
Chemistry
high-school
Pretzelb
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The correct answer is B- Lead is heat and become more viscous.
Eclipsis
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Dec 25, 2018
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B.
Lead is heated and becomes more viscous.
Thanos
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Dec 28, 2018
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