Distinguish between physical and chemical changes in matter.
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Q 1/10
Score 0
Which of the following is an example of a chemical change?
30
Burning wood
Dissolving sugar in water
Boiling water
Melting ice
Q 2/10
Score 0
A student observes a piece of iron rusting after being left outside in the rain. Why is this process classified as a chemical change rather than a physical change?
30
The process can be easily reversed by drying it
A new substance with different properties is formed
The metal was broken into smaller physical pieces
The iron changed its state of matter to a solid
10 questions
Q.
Which of the following is an example of a chemical change?
1
30 sec
7.6(C)
Q.
A student observes a piece of iron rusting after being left outside in the rain. Why is this process classified as a chemical change rather than a physical change?
2
30 sec
7.6(C)
Q.
Which observation provides the strongest evidence that a chemical change, rather than a physical change, has occurred during an experiment?
3
30 sec
7.6(C)
Q.
Which scenario describes a physical change rather than a chemical change?
4
30 sec
7.6(C)
Q.
A student mixes two clear liquids in a beaker and observes the immediate formation of a solid white powder that settles at the bottom. Which statement correctly identifies this change?
5
30 sec
7.6(C)
Q.
Which of the following describes a physical change involving a change in the state of matter?
6
30 sec
7.6(C)
Q.
A student crumples a aluminum soda can into a small ball. Why is this action considered a physical change and not a chemical change?
7
30 sec
7.6(C)
Q.
Which of the following observations would most likely indicate that a chemical change, rather than a physical change, has occurred in a laboratory setting?
8
30 sec
7.6(C)
Q.
A student performs several experiments and records the results. Which observation identifies a physical change rather than a chemical change?
9
30 sec
7.6(C)
Q.
Which of the following describes a chemical change occurring in the digestive system?
