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Question
Which of the following is an example of a physical change?A) water boiling and being converted into steam
B) water being electrolyzed and being converted in hydrogen and oxygen
C) iron metal reacting with oxygen to form rust
D) a candy bar being digested by a student
E) charcoal being converted into ash
Answer
This answer is hidden. It contains 1 characters.
Related questions
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Heat energy is measured in units of
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C) calories.
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B) decreases by 100/273.
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D) increases by 100/273.
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Which of these is the smallest?
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C) reaches equilibrium.
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When work is done by a system and heat is subtracted, the temperature of the system
A) increases.
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A) First law
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Newton discovered
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