Which observation most likely indicates that only a chemical change has taken place?(1 point)ResponsesA reaction occurs.A reaction occurs.The shape changes.The shape changes.States of matter changes.States of matter changes.The change cannot be reversed.The change cannot be reversed.

Answer 1

A reaction occurs.

Answer 2

Which observation most likely indicates that only a chemical change has taken place?(1 point)ResponsesA reaction occurs.A reaction occurs.The shape changes.The shape changes.States of matter changes.States of matter changes.The change cannot be reversed.The change cannot be reversed.

Answer 3

The change cannot be reversed.

Answer 4

Physical vs. Chemical Change Quick Check3 of 43 of 4 ItemsQuestionWhy is it a physical change to freeze water?(1 point)ResponsesA temperature change occurs.A temperature change occurs.Heat is released during the process.Heat is released during the process.The new and original substances are different.The new and original substances are different.Only a phase change occurs.

Answer 5

Only a phase change occurs.

Answer 6

Which option is an example of a chemical change?(1 point)Responsesburning woodburning woodchopping vegetableschopping vegetablesfolding paperfolding paperstretching a rubber band

Answer 7

burning wood