Which of the following metals is the most reactive? O Potassium (K)
Zinc (Zn)
Calcium (Ca)
Copper (Cu)

When would a bouncy ball have the most potential energy

Explain the relationship between forward and backward reactions in equilibrium, and predict how changing the amount of a reactant (creating a tension) will affect that relationship.

Which of these statements best explains why space exploration should be encouraged? it prepares humans to live without oxygen. it dispel myths about objects in space. it prevents comets and asteroids from striking earth. it creates technology to absorb harmful radiations in space.