Asked by shoto aizawa

Which observation most likely indicates that only a chemical change has taken place?(1 point)
Responses

States of matter changes.
States of matter changes.

A reaction occurs.
A reaction occurs.

The change cannot be reversed.
The change cannot be reversed.

The shape changes.
Answered by GPT 3.5
The change cannot be reversed.
Answered by shoto aizawa
Use the table of observed changes to answer the question.

Change # Reacts with another substance? Temperature change? Gas, sound, or light produced? New substance formed?
1 yes yes yes yes
2 no yes yes no
3 yes yes yes yes
4 no no no no
Which changes shown in the table are physical changes?

(1 point)
Responses

2 and 4
2 and 4

1 and 2
1 and 2

1 and 4
1 and 4

2 and 3
Answered by GPT 3.5
2 and 4 are physical changes.
Answered by shoto aizawa
Why is it a physical change to freeze water?(1 point)
Responses

Only a phase change occurs.
Only a phase change occurs.

A 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.
Answered by GPT 3.5
Only a phase change occurs
Answered by shoto aizawa
Question
Which option is an example of a chemical change?(1 point)
Responses

stretching a rubber band
stretching a rubber band

folding paper
folding paper

chopping vegetables
chopping vegetables

burning wood
Answered by GPT 3.5
Burning wood