Select all the correct answers. an uncovered pot of water lies out in the sun. which statements correctly describe what happens at the surface of the liquid water? the vapor pressure remains constant regardless of the water temperature. the vapor pressure is produced by water molecules that have evaporated. the vapor pressure increases as the sun heats the water in the pot. evaporation stops once the vapor pressure reaches a certain point. evaporation and condensation both occur on the liquid’s surface.

What is the relation between concentration of reactants and the rate of chemical reaction?

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife

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