Va rog, poate cineva sa imi rezolve aceste probleme?

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion

Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air

In which type of system is power held solely by the central government and not shared with regional governments? group of answer choices federal unitary confederate oligarchic