8 cm, 5 dm, 100 m, 10 DM, 5000km, 200 Hm, 3000 micrometers

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.

According to periodic trend, which of the following most likely has the highest ionization energy? kr be ni sc

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.