Discuss why the sample lost mass and explain why it is a common laboratory procedure to heat analytical reagents and store them in a dessicated atmosphere (a sealed environment containing a dehumidifying agent) before use.

Which changes of state do the labels represent? a: b: c:

Acup of coffee sits on the dashboard of an automobile. the car goes around a sharp curve. even though you hold the cup still, coffee still splashes out. this can best be explained due to a) density. b) friction. c) gravity. d) inertia.

Which lists the organs in the correct order as food passes from the mouth to anus?