You have identified a substance to be solid in nature. which characteristics will justify your identification? a definite volume, highest molecular motion, highest kinetic energy b indefinite volume, least molecular motion, highest kinetic energy c definite volume, least molecular motion, lowest kinetic energy d definite volume, no molecular motion, lowest kinetic energy

Asample of silver (with work function ? = 4.52 ev) is exposed to an ultraviolet light source (? = 200 nm), which results in the ejection of photoelectrons. what changes will be observed if: silver is replaced with copper (? = 5.10 ev) more photoelectrons ejected no photoelectrons are emitted fewer photoelectrons ejected more energetic photoelectrons (on average) less energetic photoelectrons (on average)

What mass of carbon dioxide is produced from the complete combustion of 4.50×10−3 g of methane?

If a plot weight (in g) vs. volume (in ml) for a metal gave the equation y= 13.41x and r^2=0.9981 what is the density of the metal?