Factors that cause a discrepancy between the composition of the inspired gas mixture and that of the fresh gas include A. Rebreathing B. Leaks in the breathing system C. Uptake of anesthetic agent by components of the breathing system D. Increased fresh gas flow

Astudent pours 10.0 g of salt into a container of water and observes the amount of time it takes for the salt to dissolve. she then repeats the process using the same amounts of salt and water but this time she slowly stirs the mixture while it is dissolving. the student performs the experiment one more time but this time she stirs the mixture rapidly. the dependent variable in this experiment is: time for salt to dissolve speed of stirring amount of water mass of salt