Question
which observation most likely indicates that only a chemical change has taken place?
a.) states of matter changes
b.) the shape changes
c.) the reaction occurs
d.) The change cannot be reversed
a.) states of matter changes
b.) the shape changes
c.) the reaction occurs
d.) The change cannot be reversed
Answers
Answer
Why is it a physical change to freeze water?
a. Only a phase change occurs
b. A temperature change occurs
c. He is released during the process
d. The new and original substances are different
a. Only a phase change occurs
b. A temperature change occurs
c. He is released during the process
d. The new and original substances are different
Answer
Which option is an example of a chemical change?
a. Chopping vegetables
b. Stretching a rubber band
c. Folding paper
d. Burning wood
a. Chopping vegetables
b. Stretching a rubber band
c. Folding paper
d. Burning wood
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