When a solute is added to a solvent, the freezing point of the solution is a. higher than the freezing point of either substance alone. b. lower than the freezing point of either substance alone. c. the same as the freezing point of the solute. d. the same as the freezing point of the solvent?

Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.

Compare the valence electron configuration of the nobles gas elements seen here. what statement is correct?

In the 1800s, one of the statements in john dalton's atomic theory was that atoms are indivisible. later experimental evidence led to the discovery of subatomic particles such as neutrons, electrons, and protons. what happened to the indivisible atom part of dalton's atomic theory, and why?