A balloon filled with helium gaz occupiea 2.50 L at 25°C and 1.00 atm. When released it rizez to an altitude where the temperature iz 20°C and the prezzure is only 0.80 atm.
Calculate the new volume of the balloon.
Enter your answer in the box provided.
L

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.

Which best describes why nh4+ can form an ionic bond with ci-?

This element exists in adundance in the sun. explain how you would go about capturing sunlight. would this captured sunlight contain any of the element?