A student placed a disk magnet on top of the battery to make a simple motor. When the coil was given a gentle spin it kept turning on its own. Which stamens best explains how this motor works?

How will the volume of a gas be affected if the pressure is tripled, but the temperature remains the same?

Pegmatites are igneous rocks in which the individual minerals are very large. typically, the minerals are all light-colored quartz, feldspar and muscovite. if you were given a black and white photograph of a pegmatite in a quarry (where the rock has been blasted and broken), what physical properties could you use to identify those three minerals in this hypothetical photo? describe each mineral and the specific diagnostic properties. be specific.

Draw the lewis structure for the trisulfur s3 molecule. be sure to include all resonance structures that satisfy the octet rule.