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2 cards from this section. Quick, good the night before a test.
What type of change occurs when ice melts?
Think about if the ice turns into something new.
Is rusting of iron a physical or chemical change?
Consider if a new substance is formed.
Which of the following is a physical change?
Think of whether the composition is altered.
True or False: All chemical changes are irreversible.
Consider if reactions can go back to their original state.
A piece of metal rusts, forming iron oxide. Classify this change and explain why.
Think about whether the original substance changes chemically.
Describe a scenario where both physical and chemical changes occur. Explain the processes involved.
Identify the different changes happening during the cooking process.
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