A student cuts some fabric into two pieces. Is this change physical or chemical?(1 point)
Responses
It is a physical change because there is no reaction.
It is a physical change because there is no reaction.
It is a chemical change because there is no phase change.
It is a chemical change because there is no phase change.
It is a physical change because the process is reversible.
It is a physical change because the process is reversible.
It is a chemical change because the size changes.
It is a physical change because there is no reaction.
It is a physical change because the process is reversible.
The correct answer is:
It is a physical change because there is no reaction.
The correct answer is: It is a physical change because there is no reaction.
To determine whether a change is physical or chemical, you need to consider if there is a change in the chemical composition of the substance. In this case, cutting the fabric into two pieces does not result in any change in the chemical makeup of the fabric. The fabric remains the same fabric, just in two separate pieces. Therefore, it is a physical change.
To arrive at this answer, you should consider the definition of physical and chemical changes. Physical changes are changes in the physical properties of a substance, such as its shape, size, or state of matter, without any alteration in its chemical composition. On the other hand, chemical changes involve the rearrangement of atoms or molecules, resulting in the formation of new substances with different chemical properties.
Additionally, if you are unsure, you can also look for other clues, such as the absence of a reaction or a phase change (solid to liquid, gas to liquid, etc.) to help you determine whether it is a physical or chemical change.