What is the general equation for a double-displacement reaction? Ab -> A+B

A + BX -> B + AX

AX + BY -> AY + BX

A + B -> AB

Formulating a hypothesis: part i since the investigative question has two variables, you need to focus on each one separately. thinking only about the first part of the question, mass, what might be a hypothesis that would illustrate the relationship between mass and kinetic energy? use the format of " because when writing your hypothesis