identify each of the following as a physical or chemical change.write cc for chemical change pc for physical change.
_____21,you leave your bicycle out in the rain and it rusts.
_____22,a sugar cube dissolves.
_____23,scientist break up water into oxygen and hydrogen gas.
_____24,burning coal for a barbecue.
_____25,trimminga bush because it has grown too tall.
Answers & Comments
Answer:
21.cc
22.pc
23.cc
24.pc
25.pc
Explanation:
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