One of the governing laws of the universe is the thermodynamic law of entropy. Which choice best describes entropy? A. Particles and energy in a system become more and more disordered.

B. Energy is consumed in a chemical reaction.

C. Heat is evenly distributed throughout the universe.

D. More bonds are broken in a chemical reaction than bonds are formed.

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?

When determining the shape of a molecule, it is important to draw a lewis dot structure first in order to see the total number a. electrons within the moleculeb. bonding and unshared pairs around central atomc. unshared pair within the molecule( i really need it )

If you chip a tooth, most likely you will go to the dentist to have the missing material filled in. currently the material used to fill in teeth is a polymer that is flexible when put in, yet is hardened to the strength of a tooth after irradiation with blue light at a wavelength of 461 nm. what is the energy in joules for a photon of light at this wavelength?