Question

Use the table of observed changes to answer the question.

Indicators of Chemical Versus Physical Changes
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

1 and 4
1 and 4

2 and 3
2 and 3

1 and 2
1 and 2

2 and 4

Answer 1

2 and 4

Reason: Physical changes do not produce a new substance or involve reacting with another substance; only changes 2 and 4 meet those criteria.