PLS HELP ASAP NO LINKS What is a useful technology developed from scientific observations on the nano scale?
carbon nanotubes for stain resistant textiles
laser manipulation of molecules
the production of microchips

In an oxidation-reduction reaction, oxidation is what happens when a reactant

Water (2510 g ) is heated until it just begins to boil. if the water absorbs 5.09×105 j of heat in the process, what was the initial temperature of the water?

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line