What method will speed up a chemical reaction? a. apply heat b. avoid grinding the substance c. decrease the concentration of the reactants

Which element would mostly likely have an electron affinity measuring closest to zero

Adilute aqueous potassium nitrate solution is

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.