At 333 k, which of the pairs of gases below would have the most nearly identical rates of effusion? a. n2 and o2 b. n2o and no2 c. co and co2 d. no2 and n2o4 e. co and n2

If soap hits the floor, is the soap dirty or the floor

Iknow the answer is a but i don't know why

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