Which are the main regions of the periodic table? a. metals, nonmetals, gases b. solids, liquids, gases c. metals, semimetals, nonmetals

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change? work power gravitational energy chemical energy

We have a colorless transparent liquid. it looks like water. we seperated it into a solid and a liquid by evaporration and condention was this a chemichal or a physical seperation a. chemical seperation b. physical seperation

How do we measure or think of speed in the united states?