Increasing the concentration increases the speed of reaction by  a) lowering activation energy
b) inncreasing collisions
c) speeding up the reactants
d) exposing more reactant​

How can one make a supersaturated solution? (apex)

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.

Describe at least two advantages and two disadvantages of using hydropower as a source of energy.