Which of these is an extensive property of a substance? color , hardness , malleability, or volume

Suppose a lab group reports a ppercent yield of sand of 105. is it really possible to collect more sand than was originally represented? what is the possible explanation for the extra product?

It takes 155. kj/mol to break a fluorine-fluorine single bond. calculate the maximum wavelength of light for which a flouine-flouring single bond could be broken by absorbing a single photon

Plzzz ? which stores information in discrete steps? a magnet and coil of wire compact discs plastic records amplified speakers