What new element is formed in the equation below?

In a closed or isolated system , matter can not be created or destroyed. it can change forms but is conserved true or false

The diagram shows the structures of horse and cat forelimbs. what does the diagram suggest about the evolutionary relationship between these two mammals? a. they have homologous structures, indicating a common ancestor. b. they have analogous structures, indicating a common ancestor. c. they have homologous structures, indicating that they do not have a common ancestor. d. they have analogous structures, indicating that they do not have a common ancestor.

According to coulomb's law, how would the electrical force between particles change if the product of their electrical charge increased?