How to assign a static ip address to a helium hotspot

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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.

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution