An unknown solution changed the color of a phenolphthalein indicator from colorless to pink. what would you comment about the ph of the unknown solution? a. the given solution is acidic in nature. b. the given solution is basic in nature. c. the given solution is neutral in nature.

1) this is the structure in the cell nucleus that houses a cell's genetic information

How many moles of gas are present if p=11 atm, v=12l, t=185k?

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.