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

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.

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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…

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