Which of these best explains why a paper clip can float on water?

Determine the number o moles of ions/atoms/particle in the following: 2.50 miles of k2s (let me know how to do)

There is an area in idaho named craters of the moon where most of the ground is covered with basalt, adark gray, igneous rock with no visibl crystals. what can you infer about the geographical history of the area?

Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?