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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 4
2 and 4

2 and 3
2 and 3

1 and 2

1 answer

In the table, physical changes are characterized by a lack of new substance formation and may or may not involve changes in temperature, gas, sound, or light.

Based on the given information:

  • Change 1: Reacts with another substance? Yes (chemical change)
  • Change 2: Reacts with another substance? No (potential physical change)
  • Change 3: Reacts with another substance? Yes (chemical change)
  • Change 4: Reacts with another substance? No (potential physical change)

Changes 2 and 4 do not produce a new substance and therefore are physical changes.

The correct response is:

2 and 4