What type of molecule is cf4?
a/polar, with a symmetrical distribution of charge
b/polar, with an asymmetrical distribution of charge
c/nonpolar, with a symmetrical distribution of charge
d/nonpolar, with an asymmetrical distribution of 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.

Avariable that is not being directly tested during an experiment should be changed varied experimented controlled

According to le chatelier’s principle, a system in chemical equilibrium responds to stress by shifting the equilibrium in a direction that reduces the stress. normalizes the stress. increases the stress. changes the stress.