Plz help with all four question. Will get branliest!

What is the relation between concentration of reactants and the rate of chemical reaction?

Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.

How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?