Astudent mixes two clear liquids together. after a few minutes, a white powdery solid can be seen settling on the bottom of the test tube. which of the following is a conclusion that the student can draw based on these observations? question 12 options: the two liquids have gone through a chemical change in which a new substance called a precipitate was produced. the two liquids were pure substances before they were mixed. the two liquids are toxic and should be handled with extreme caution. the two liquids have been stored too long and are no longer good.

Assume that two of the electrons at the negative terminal have attached themselves to a nearby neutral atom. there is now a negative ion with a charge -2e at this terminal. what are the electric potential and electric potential energy of the negative ion relative to the electron? the electric potential and the electric potential energy are both twice as much. the electric potential is twice as much and the electric potential energy is the same. the electric potential is the same and the electric potential energy is twice as much. the electric potential and the electric potential energy are both the same. the electric potential is the same and the electric potential energy is increased by the mass ratio of the oxygen ion to the electron. the electric potential is twice as much and the electric potential energy is increased by the mass ratio of the oxygen ion to the electron.