Which of the following could result from a substance that undergoes a physical change? a. it changes irreversibly. b. it undergoes phase change. c. it’s elements composition is altered. d. its atoms rearrange to form a new molecule.

The answer is: B. It undergoes phase change.

A physical change occurs when a substance changes phase.  

For example, evaporization is phase change process in which the water changes from a liquid to a gas (water vapor).  

Condensation is phase change process in which the water changes from a gas to a liquid.

If the arrangement of particles is changed, that is chemical change or chemical reaction (new substance is formed).

The correct answer is option B, that is, it undergoes a phase change.  

Explanation:

A physical change occurs when a substance changes phase. The term phase change or phase transition is most generally used to illustrate transitions between the liquid, solid, and gaseous states of matter.  

At the time of a phase change of a given medium, some of the features of the medium change, generally intermittently, as an outcome of the change of external conditions like pressure, temperature, or others. For example, a liquid may turn into a gas by getting heated to the boiling point, leading to a sudden change in volume.  

the answer would be a

in chemistry, adhesion and cohesion are attractive forces that exist between molecules. they hold the molecules together from each other. they are different in that adhesive force exists between molecules of different substance while cohesive force happens between molecules of same substance.

adhesion between water and glass causes water molecules at the edge of water and glass interface to climb up the wall in a narrow glass tube. this is called capillary action. cohesion is what gives glass its shape and causes water to form a droplet.