Question

select the correct answer. in an experiment, lydia added 50 grams of sugar to 200 milliliters of water. she stirred the mixture, and the sugar gradually dissolved into the water and couldnt be seen. the volume of the solution increased, but there was no noticeable change in color, odor, or temperature. which statement best describes what happened in lydias experiment? a. a physical change took place during this experiment b. a chemical change took place during this experiment c. a compound was formed during this experiment d. a heterogeneous mixture was formed during this experiment

Explanation:

A physical change involves a change in physical properties like state, shape, or volume without changing the chemical composition. When sugar dissolves in water, it is just dispersed in the water molecules and no new chemical substance is formed. There is no change in color, odor, or temperature and no chemical reaction has occurred. A compound formation requires a chemical reaction between different elements or substances. A heterogeneous mixture has visibly different parts, but the sugar - water solution is uniform. So, this is a physical change.

Answer:

A. A physical change took place during this experiment