Question

chemical and physical changes part a consider the images depicting change. which statement accurately describes a change taking place in one of the images? a the water in image ii is undergoing a chemical change because there is a change in phase. b the pipes are undergoing a physical change because they are split pipes, nothing new is formed. c a chemical change is occurring in image ii because heat energy is being removed from liquid water. d the pipes in image i are going through a chemical change called rusting. the evidence is the color change.

Explanation:

A phase - change is a physical change, not a chemical change, so A is incorrect. Cutting paper is a physical change as no new substances are formed, which is correct as described in B. Removing heat energy from liquid water to change its state is a physical change of freezing, not a chemical change, so C is incorrect. Rusting of pipes is a chemical change due to the reaction with oxygen in the air forming a new substance (rust) and the color change is an indication, which is correct as described in D. But the most accurate description among the options for a single - image change is B as it clearly and simply describes a physical change.

Answer:

B. The papers are undergoing a physical change because they are slit papers, nothing new is formed.