Which option identifies the most likely testable question in the following scenario? One thousand mice are separated into two groups. Flve hundred are given an artificial sweetener, aspartame, in their food. The other five hundred are given the same food without the artificial sweetener added. Once a week for six months, the mice in both groups are weighed. Will aspartame change the taste of food? Do mice enjoy eating food with aspartame? Does aspartame cause changes in the weight of mice? Do heavier mice eat more food with aspartame?

1.43 x 10^-11 j the guy commented the awnser just making sure u see it .

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.