A 6.91 L cylinder contains 1.29 mol of gas A and 4.33 mol of gas B, at a temperature of 27.4 °C. Calculate the partial pressure of each gas in the cylinder. Assume ideal gas behavior. What is the total pressure?

Agroup of students is studying convection current. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other is in an area with warm air. after 10 minutes, the balloon are released from a height of 1 meter. which of the following to the students most likely observe? a) the warm balloon expands and rises. the cold balloon shrinks and sinks b) the balloon both rise. the cold balloon is larger than the warm balloon c) the cold balloon expands and rises. the warm balloon shrinks and sinks d) the balloon rise at the same rate. both balloons are the same size

Which two scientific disciplines are bridged by pharmaceutical drugs? chemistry and forensics chemistry and medicine biology and forensics biology and criminology

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