How many moles of Ca are in 3.75 x 10^25 atoms of Ca?

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.

Using the periodic table, complete the table to describe each atom. type in your answers

What are transitions between a liquid and a solid called? identify which way they are transitioning