Janet observes that the shape of a dented table tennis ball is restored by heating the ball gently in warm water. which of the following gas laws is used to understand the observation made by janet and why?
the high temperature lowers volume according to boyle's law because this law describes how a gas will behave when the number of moles remains constant.
the high temperature raises volume according to boyle's law because this law describes how a gas will behave when the number of moles remains constant.
the high temperature lowers the volume of air inside the ball according to charles's law because this law describes how a gas will behave at constant pressure.
the high temperature raises the volume of air inside the ball according to charles's law because this law describes how a gas will behave at constant pressure.

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

All of the following describe uses of nonrenewable energy sources except

Island arcsisland arcs are long, curved chains of oceanic islands associated with seismic activity and mountain-building processes at certain plate boundaries. they occur where oceanic tectonic plates collide. along one side of these island arcs, there is usually a long, narrow deep-sea trench.at island arcs, the denser plate is subducted and is forced into the partially molten mantle under the less dense plate. the islands are composed of the extrusive igneous rocks basalt and andesite. the basalt originates most likely from the plastic mantle. the andesite originates most likely from the melting of parts of the descending plate and sediments that had accumulated on its surface.which list identifies minerals present in andesite from the greatest percentage by volume to the least percentage by volume? a) biotite, plagioclase feldspar, amphiboleb) biotite, amphibole, plagioclase feldsparc) plagioclase feldspar, biotite, amphiboled) plagioclase feldspar, amphibole, biotite