NEED HELP ASAP Since the atoms are generally neutral (in terms of charge) and the scientists knew that the electron was negativeLy charged, what was the conclusion they could logically come to? A. That there must be more negative particles in the atom
B. That there must be only neutral particles in the atom
C. That there must be a positive charge somewhere in the atom
D. That the electrons can change their charge

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.

Asolution contains 180 g of glucose (c6h12o6) and 162 g of water. what is the mole fraction of glucose?

Select all that apply. using a value of ksp = 1.8 x 10-2 for the reaction pbcl2 (s) pb+2(aq) + 2cl -(aq). the concentration of the products yield a ksp of 2.1 x 10-2: